Page 1 of 61
                                                        Exhibit Index on Page 16

                                    FORM 10-Q

                       SECURITIES AND EXCHANGE COMMISSION

                             WASHINGTON, D.C. 20549

                Quarterly Report Pursuant to Section 13 or 15 (d)
                     of the Securities Exchange Act of 1934



For quarter ended May 31, 1999                     Commission file number 1-3208
- --------------------------------------------------------------------------------



                        NATIONAL SERVICE INDUSTRIES, INC.
- --------------------------------------------------------------------------------
             (Exact Name of Registrant as Specified in its Charter)



             Delaware                                 58-0364900
(State or Other Jurisdiction of          (I.R.S. Employer Identification Number)
Incorporation or Organization)


            1420 Peachtree Street, N. E., Atlanta, Georgia 30309-3002
- --------------------------------------------------------------------------------
               (Address of Principal Executive Offices) (Zip Code)



                                 (404) 853-1000
- --------------------------------------------------------------------------------
              (Registrant's Telephone Number, Including Area Code)

                                      None
- --------------------------------------------------------------------------------
              (Former Name, Former Address and Former Fiscal Year,
                         if Changed Since Last Report)



Indicate by check mark whether the registrant (1) has filed all reports required
to be filed  by  Section  13 or 15 (d) of the  Securities  Exchange  Act of 1934
during the preceding 12 months (or for such shorter  period that the  registrant
was  required  to file such  reports),  and (2) has been  subject to such filing
requirements for the past 90 days.

            Yes -    X                                  No -
            ----------                                  ----------

Indicate the number of shares  outstanding  of each of the  issuer's  classes of
common stock, as of the latest practicable date.

Common Stock - $1.00 Par Value - 40,445,220 shares as of June 30, 1999.
- --------------------------------------------------------------------------------







 Page 2





               NATIONAL SERVICE INDUSTRIES, INC. AND SUBSIDIARIES

                                      INDEX

                                                                        Page No.

PART I.  FINANCIAL INFORMATION

      ITEM 1.  FINANCIAL STATEMENTS

           CONSOLIDATED BALANCE SHEETS-
           MAY 31, 1999 AND AUGUST 31, 1998                                3

           CONSOLIDATED STATEMENTS OF INCOME-
           THREE MONTHS AND NINE MONTHS ENDED
           MAY 31, 1999 AND 1998                                           4

           CONSOLIDATED STATEMENTS OF CASH FLOWS-
           NINE MONTHS ENDED MAY 31, 1999 AND 1998                         5

           NOTES TO CONSOLIDATED FINANCIAL STATEMENTS                     6-9

      ITEM 2.  MANAGEMENT'S DISCUSSION AND ANALYSIS OF                   10-13
               FINANCIAL CONDITION AND RESULTS OF OPERATIONS

PART II.  OTHER INFORMATION

      ITEM 6.  EXHIBITS AND REPORTS ON FORM 8-K                            14

SIGNATURES                                                                 15

EXHIBIT INDEX                                                            16-17









                                                                          Page 3
               NATIONAL SERVICE INDUSTRIES, INC. AND SUBSIDIARIES
                     CONSOLIDATED BALANCE SHEETS (Unaudited)
                 (In thousands, except share and per share data)


                                                                                                  May 31,       August 31,
                                                                                                    1999           1998
                                                                                               --------------- ---------------
Assets
Current Assets:
                                                                                                           
      Cash and cash equivalents                                                                    $  62,893     $   19,146
      Receivables, less reserves for doubtful accounts of $5,784 at May 31, 1999 and
                $4,631 at August 31, 1998                                                             333,236       307,140
      Inventories, at the lower of cost (on a first-in, first-out basis) or market                    202,002       197,950
      Linens in service, net of amortization                                                           58,054        58,826
      Deferred income taxes                                                                            10,544        17,542
      Prepayments                                                                                       8,941         6,447
                                                                                               --------------- ---------------
           Total Current Assets                                                                       675,670       607,051
                                                                                               --------------- ---------------

Property, Plant, and Equipment, at cost:
      Land                                                                                             19,321        21,450
      Buildings and leasehold improvements                                                            156,227       150,326
      Machinery and equipment                                                                         530,456       485,271
                                                                                               --------------- ---------------
           Total Property, Plant, and Equipment                                                       706,004       657,047
      Less-Accumulated depreciation and amortization                                                 (413,028)     (385,176)
                                                                                               --------------- ---------------
           Property, Plant, and Equipment-net                                                         292,976       271,871
                                                                                               --------------- ---------------

Other Assets:
      Goodwill and other intangibles                                                                  124,211        88,280
      Other                                                                                            46,529        43,482
                                                                                               --------------- ---------------
           Total Other Assets                                                                         170,740       131,762
                                                                                               --------------- ---------------
                Total Assets                                                                       $1,139,386    $1,010,684
                                                                                               =============== ===============

Liabilities and Stockholders' Equity
Current Liabilities:
      Current maturities of long-term debt                                                         $      101    $       98
      Notes payable                                                                                    11,225         7,883
      Accounts payable                                                                                 95,358        95,217
      Accrued salaries, commissions, and bonuses                                                       32,852        34,820
      Current portion of self-insurance reserves                                                        9,663        11,253
      Accrued taxes payable                                                                               426             -
      Other accrued liabilities                                                                        78,431        72,724
                                                                                               --------------- ---------------
           Total Current Liabilities                                                                  228,056       221,995
                                                                                               --------------- ---------------

Long-Term Debt, less current maturities                                                               185,628        78,092
                                                                                               --------------- ---------------
Deferred Income Taxes                                                                                  41,131        40,404
                                                                                               --------------- ---------------
Self-Insurance Reserves, less current portion                                                          42,525        44,573
                                                                                               --------------- ---------------
Other Long-Term Liabilities                                                                            56,854        46,719
                                                                                               --------------- ---------------

Stockholders' Equity:
      Series A participating  preferred stock, $.05 stated value,  500,000 shares
            authorized, none issued
      Preferred stock, no par value, 500,000 shares authorized, none issued
      Common stock, $1 par value, 120,000,000 shares authorized, 57,918,978 shares issued              57,919        57,919
      Paid-in capital                                                                                  29,010        28,521
      Retained earnings                                                                               946,068       903,974
      Accumulated other comprehensive income items                                                    (8,867)       (11,357)
                                                                                               --------------- ---------------
                                                                                                    1,024,130       979,057
      Less-Treasury stock, at cost (17,477,738 shares at May 31, 1999 and 16,457,340
           shares at August 31, 1998)                                                                 438,938       400,156
                                                                                               --------------- ---------------
           Total Stockholders' Equity                                                                 585,192       578,901
                                                                                               --------------- ---------------
                Total Liabilities and Stockholders' Equity                                         $1,139,386    $1,010,684
                                                                                               =============== ===============


The accompanying notes to consolidated financial statements are an integral part
of these balance sheets.





Page 4
               NATIONAL SERVICE INDUSTRIES, INC. AND SUBSIDIARIES
                  CONSOLIDATED STATEMENTS OF INCOME (Unaudited)
                      (In thousands, except per share data)




                                                          THREE MONTHS ENDED                NINE MONTHS ENDED
                                                                MAY 31                            MAY 31
                                                     -----------------------------    -------------------------------
                                                         1999           1998              1999           1998
                                                     -------------- --------------    -------------- ----------------

Sales and Service Revenues:
                                                                                           
      Net sales of products                              $ 489,787      $ 442,144       $ 1,369,808    $ 1,253,529
      Service revenues                                      80,051         79,464           229,315        235,073
                                                     -------------- --------------    -------------- ----------------
           Total Revenues                                  569,838        521,608         1,599,123      1,488,602
                                                     -------------- --------------    -------------- ----------------

Costs and Expenses:
      Cost of products sold                                301,328        269,019           836,864        765,854
      Cost of services                                      44,762         45,270           134,107        136,366
      Selling and administrative expenses                  173,605        161,618           499,114        464,757
      Interest expense (income), net                         3,340          1,304             8,219         (1,092)
      Gain on sale of businesses                            (2,303)          (442)           (5,814)        (2,404)
      Restructuring expense, asset impairments, and
           other charges                                         -              -            (2,216)             -
      Other (income) expense, net                              471             50              (143)           665
                                                     -------------- --------------    -------------- ----------------
           Total Costs and Expenses                        521,203        476,819         1,470,131      1,364,146
                                                     -------------- --------------    -------------- ----------------

Income before Provision for Income Taxes                    48,635         44,789           128,992        124,456

Provision for Income Taxes                                  18,094         16,650            47,985         46,161
                                                     -------------- --------------    -------------- ----------------

Net Income                                               $  30,541      $  28,139       $    81,007    $    78,295
                                                     ============== ==============    ============== ================

Per Share:
      Basic Earnings per Share                           $     .75      $     .67       $      1.97    $      1.83
                                                     ============== ==============    ============== ================
      Basic Weighted Average Number of Shares
      Outstanding                                           40,654         42,001            41,030         42,763
                                                     ============== ==============    ============== ================

      Diluted Earnings per Share                         $     .75      $     .66       $      1.97    $      1.81
                                                     ============== ==============    ============== ================
      Diluted Weighted Average Number of Shares
      Outstanding                                           40,851         42,659            41,221         43,300
                                                     ============== ==============    ============== ================















The accompanying notes to consolidated financial statements are an integral part
of these statements.





                                                                          Page 5
               NATIONAL SERVICE INDUSTRIES, INC. AND SUBSIDIARIES
                CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited)
                                 (In thousands)


                                                                                                  NINE MONTHS ENDED
                                                                                                       MAY 31
                                                                                        --------------------------------------
                                                                                                    1999               1998
                                                                                        ------------------- ------------------

Cash Provided by (Used for) Operating Activities
                                                                                                               
      Net income                                                                                  $ 81,007           $ 78,295
      Adjustments to reconcile net income to net cash provided by (used for) operating
           activities:
           Depreciation and amortization                                                            44,033             36,108
           Provision for losses on accounts receivable                                               2,762              3,908
           Gain on the sale of property, plant, and equipment                                       (1,164)            (3,417)
           Gain on the sale of businesses                                                           (5,814)            (2,404)
           Restructuring expense, asset impairments, and other charges                              (2,216)                 -
           Change in noncurrent deferred income taxes                                                  727             12,216
           Change in assets and liabilities net of effect of acquisitions and
           divestitures-
                Receivables                                                                        (16,188)           (28,309)
                Inventories and linens in service, net                                               5,388            (19,683)
                Deferred income taxes                                                                6,998             (4,636)
                Prepayments and other                                                               (1,550)              (971)
                Accounts payable and accrued liabilities                                            (6,529)           (68,834)
                Self-insurance reserves and other long-term liabilities                              8,087             (3,841)
                                                                                       -------------------  ------------------
                      Net Cash Provided by (Used for) Operating Activities                         115,541             (1,568)
                                                                                        ------------------- ------------------

Cash Provided by (Used for) Investing Activities
      Change in short-term investments                                                                   -            205,244
      Purchases of property, plant, and equipment                                                  (48,298)           (56,829)
      Sale of property, plant, and equipment                                                         3,487              4,717
      Sale of businesses                                                                             3,767              3,011
      Acquisitions                                                                                 (62,881)           (39,424)
      Change in other assets                                                                        (4,034)            (6,230)
                                                                                        ------------------- --------------------
           Net Cash Provided by (Used for) Investing Activities                                   (107,959)           110,489
                                                                                        ------------------- --------------------

Cash Provided by (Used for) Financing Activities
      Borrowings of notes payable, net                                                               3,343             49,659
      Borrowings (repayments) of long-term debt, net                                               107,538               (910)
      Purchase of treasury stock, net                                                              (38,293)          (145,179)
      Cash dividends paid                                                                          (38,913)           (39,842)
                                                                                        ------------------- --------------------
           Net Cash Provided by (Used for) Financing Activities                                     33,675           (136,272)
                                                                                        ------------------- --------------------
Effect of Exchange Rate Changes on Cash                                                              2,490               (843)
                                                                                        ------------------- --------------------
Net Change in Cash and Cash Equivalents                                                             43,747            (28,194)
Cash and Cash Equivalents at Beginning of Period                                                    19,146             57,123
                                                                                        ------------------- --------------------
Cash and Cash Equivalents at End of Period                                                        $ 62,893           $ 28,929
                                                                                        =================== ====================

Supplemental Cash Flow Information:
      Income taxes paid during the period                                                         $ 37,888           $ 76,382
      Interest paid during the period                                                                9,940              4,929

Noncash Investing and Financing Activities:
      Noncash aspects of sale of businesses--
           Receivables recorded                                                                   $    396           $      -
           Liabilities assumed or incurred                                                             326                165

      Noncash aspects of acquisitions--
           Liabilities assumed or incurred                                                        $ 15,574           $  4,891
           Treasury stock issued                                                                       845                  -




The accompanying notes to consolidated financial statements are an integral part
of these statements.





Page 6
               NATIONAL SERVICE INDUSTRIES, INC. AND SUBSIDIARIES

             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Unaudited)
                 (In thousands, except share and per share data)


1.   BASIS OF PRESENTATION

The interim consolidated financial statements included herein have been prepared
by the company without audit and the condensed  consolidated balance sheet as of
August 31, 1998 has been  derived  from  audited  statements.  These  statements
reflect adjustments,  all of which are of a normal, recurring nature, which are,
in the  opinion of  management,  necessary  to present  fairly the  consolidated
financial  position as of May 31, 1999, the  consolidated  results of operations
for the  three  months  and nine  months  ended May 31,  1999 and 1998,  and the
consolidated cash flows for the nine months ended May 31, 1999 and 1998. Certain
reclassifications  have been made to the prior year's  financial  statements  to
conform to the current year's  presentation.  Certain  information  and footnote
disclosures  normally  included in financial  statements  prepared in accordance
with generally  accepted  accounting  principles have been condensed or omitted.
The company  believes that the  disclosures are adequate to make the information
presented not  misleading.  It is suggested that these  financial  statements be
read in conjunction with the financial  statements and notes thereto included in
the  company's  Annual  Report on Form 10-K for the fiscal year ended August 31,
1998.

The results of  operations  for the three  months and nine months  ended May 31,
1999 are not  necessarily  indicative of the results to be expected for the full
fiscal year because the company's  revenues and income are  generally  higher in
the second  half of its fiscal year and  because of the  uncertainty  of general
business conditions.


2.    BUSINESS SEGMENT INFORMATION

During the first  quarter of fiscal  1999,  the  company  adopted  Statement  of
Financial Accounting Standards (SFAS) No. 131, "Disclosures about Segments of an
Enterprise and Related Information." The objective of SFAS No. 131 is to provide
information  about  the  different  types of  business  activities  in which the
company engages. The following have been identified as reportable segments:
lighting equipment, chemical, textile rental, and envelope.



                                                                                           Depreciation           Capital
                                                         Sales and        Operating             and             Expenditures
                                                          Service           Profit         Amortization          Including
Nine Months Ended May 31, 1999                           Revenues           (Loss)            Expense           Acquisitions
                                                       --------------    -------------    ----------------    -----------------

                                                                                                          
Lighting Equipment                                        $  862,857         $ 82,270             $19,553              $67,076
Chemical                                                     360,670           29,756               7,562                8,160
Textile Rental                                               229,315           26,146              10,862               11,955
Envelope                                                     146,281           11,054               4,535               23,592
                                                       --------------    -------------    ----------------    -----------------
      Subtotal                                             1,599,123          149,226              42,512              110,783
Corporate                                                                     (12,015)              1,521                  396
Interest income (expense), net                                                 (8,219)
                                                       --------------    --------------   ---------------     -----------------
      Total                                               $1,599,123         $128,992             $44,033             $111,179
                                                       ==============    =============    ================    =================

Nine Months Ended May 31, 1998

Lighting Equipment                                        $  806,233         $ 76,649             $14,362             $ 25,131
Chemical                                                     332,056           28,467               6,944               12,409
Textile Rental                                               235,073           21,525               9,765               14,594
Envelope                                                     115,240            8,896               3,374               43,640
                                                       --------------    -------------    ----------------    -----------------
      Subtotal                                             1,488,602          135,537              34,445               95,774
Corporate                                                                     (12,173)              1,663                  479
Interest income (expense), net                                                  1,092
                                                       --------------    -------------    ----------------    -----------------
      Total                                               $1,488,602         $124,456             $36,108             $ 96,253
                                                       ==============    =============    ================    =================







                                                                          Page 7



                                                                                           Depreciation           Capital
                                                         Sales and        Operating             and             Expenditures
                                                          Service           Profit         Amortization          Including
Three Months Ended May 31, 1999                          Revenues           (Loss)            Expense           Acquisitions
                                                       --------------    -------------    ----------------    -----------------

                                                                                                           
Lighting Equipment                                        $  306,192         $ 28,957             $ 6,642             $ 27,335
Chemical                                                     127,230           11,495               2,586                3,837
Textile Rental                                                80,051           10,212               3,597                2,659
Envelope                                                      56,365            4,400               1,713                6,081
                                                       --------------    -------------    ----------------    -----------------
      Subtotal                                               569,838           55,064              14,538               39,912
Corporate                                                                      (3,089)                507                   60
Interest income (expense), net                                                 (3,340)
                                                       --------------    -------------    ----------------    -----------------
      Total                                               $  569,838         $ 48,635             $15,045             $ 39,972
                                                       ==============    =============    ================    =================

Three Months Ended May 31, 1998

Lighting Equipment                                        $  277,497         $ 26,123             $ 4,745             $  8,017
Chemical                                                     119,111           11,321               2,331                3,114
Textile Rental                                                79,464            8,707               3,268                4,459
Envelope                                                      45,536            4,428               1,425               36,033
                                                       --------------    -------------    ----------------    -----------------
      Subtotal                                               521,608           50,579              11,769               51,623
Corporate                                                                      (4,486)                522                  135
Interest income (expense), net                                                 (1,304)
                                                       --------------    -------------    ----------------    -----------------
      Total                                               $  521,608         $ 44,789             $12,291             $ 51,758
                                                       ==============    =============    ================    =================




                                                                    Identifiable Assets

                                                    ----------------------------------------------------
                                                        May 31, 1999                 August 31, 1998
                                                    ---------------------          ---------------------

                                                                                       
Lighting Equipment                                            $  461,416                     $  397,962
Chemical                                                         239,415                        235,269
Textile Rental                                                   192,409                        193,347
Envelope                                                         125,535                        103,087
                                                    ---------------------          ---------------------
      Subtotal                                                 1,018,775                        929,665
Corporate                                                        120,611                         81,019
                                                    ---------------------          ---------------------
      Total                                                   $1,139,386                     $1,010,684
                                                    =====================          =====================



3.   INVENTORIES

Major classes of inventory as of May 31, 1999 and August 31, 1998 were as
follows:



                                                                  May 31,               August 31,
                                                                    1999                   1998
                                                                -------------          -------------

                                                                                 
Raw materials and supplies                                      $     81,071           $     78,730
Work-in-progress                                                      11,052                 10,725
Finished goods                                                       109,879                108,495
                                                                -------------          -------------
     Total                                                      $    202,002           $    197,950
                                                                =============          =============



4.    EARNINGS PER SHARE

During the quarter ended  February 28, 1998,  the company  adopted  Statement of
Financial  Accounting  Standards  (SFAS) No. 128,  "Earnings  per Share."  Basic
earnings  per share is computed by dividing  net  earnings  available  to common
stockholders by the weighted average number of common shares  outstanding during
the period.  Diluted  earnings per share is computed  similarly but reflects the
potential  dilution  that could occur if dilutive  options were  exercised.  The
following table  calculates basic earnings per common share and diluted earnings
per common share at May 31:






Page 8



                                                                              Three Months Ended               Nine Months Ended
                                                                                    May 31                          May 31
                                                                         -----------------------------    --------------------------
                                                                             1999            1998            1999            1998
                                                                         -------------    ------------    ------------    ----------
Basic earnings per common share:
                                                                                                                
      Net income                                                             $30,541        $ 28,139        $ 81,007        $ 78,295
      Basic weighted average shares outstanding (in thousands)                40,654          42,001          41,030          42,763
                                                                         -------------    ------------    ------------    ----------
      Basic earnings per common share                                        $   .75        $    .67        $   1.97        $   1.83
                                                                         =============    ============    ============    ==========

Diluted earnings per common share:
      Net income                                                             $30,541        $ 28,139        $ 81,007        $ 78,295

      Basic weighted average shares outstanding (in thousands)                40,654          42,001          41,030          42,763
           Add - Shares of common stock issuable upon assumed exercise
           of dilutive stock options (in thousands)                              197             658             191             537
                                                                         -------------    ------------    ------------    ----------
      Diluted weighted average shares outstanding (in thousands)              40,851          42,659          41,221          43,300
                                                                         -------------    ------------    ------------    ----------
      Diluted earnings per common share                                      $   .75        $    .66        $   1.97        $   1.81
                                                                         =============    ============    ============    ==========



5.    COMPREHENSIVE INCOME

The company adopted SFAS No. 130, "Reporting Comprehensive Income," in the first
quarter of fiscal 1999.  SFAS No. 130 requires the reporting of a measure of all
changes in equity of an entity  that  result from  recognized  transactions  and
other economic events other than  transactions  with owners in their capacity as
owners.  Other  comprehensive  income (loss) for the three and nine months ended
May 31, 1999 and 1998 includes only foreign  currency  translation  adjustments.
The calculation of comprehensive income is as follows:




                                                           Three Months Ended               Nine Months Ended
                                                                 May 31                           May 31
                                                       ----------------------------    -----------------------------
                                                          1999            1998             1999            1998
                                                       ------------    ------------    -------------    ------------

                                                                                             
      Net income                                          $ 30,541      $ 28,139           $ 81,007      $ 78,295
      Other comprehensive income (loss)                        824          (535)             2,490          (843)
                                                       ------------    ------------    -------------    ------------
           Comprehensive Income                           $ 31,365      $ 27,604           $ 83,497      $ 77,452
                                                       ============    ============    =============    ============



6.    ENVIRONMENTAL MATTERS

The company's operations,  as well as similar operations of other companies, are
subject  to  comprehensive  laws and  regulations  relating  to the  generation,
storage,  handling,  transportation,  and disposal of hazardous  substances  and
solid and hazardous wastes and to the remediation of contaminated sites. Permits
and environmental  controls are required for certain of the company's operations
to limit air and water pollution, and these permits are subject to modification,
renewal, and revocation by issuing authorities.  The company believes that it is
in substantial compliance with all material environmental laws, regulations, and
permits.  On an ongoing basis,  the company  incurs capital and operating  costs
relating to environmental  compliance.  Environmental  laws and regulations have
generally  become stricter in recent years, and the cost of responding to future
changes may be substantial.

The company's environmental reserves totaled $11,720 and $12,600 at May 31, 1999
and August 31, 1998,  respectively.  The actual cost of environmental issues may
be  substantially  lower or higher than that  reserved due to the  difficulty in
estimating   such  costs,   potential   changes  in  the  status  of  government
regulations,  and the inability to determine  the extent to which  contributions
will be available from other parties. The company does not believe that any such
amount below or in excess of that accrued is reasonably estimable.






                                                                          Page 9

Certain  environmental  laws,  such as Superfund,  can impose  liability for the
entire cost of site  remediation  upon each of the  current or former  owners or
operators  of a site or  parties  who sent  waste to a site where a release of a
hazardous  substance has occurred  regardless of fault or the  lawfulness of the
original disposal activity.  Generally,  where there are a number of potentially
responsible  parties  ("PRPs") that are financially  viable,  liability has been
apportioned  based on the type and amount of waste  disposed of by each party at
such  disposal  site and the number of  financially  viable  PRPs,  although  no
assurance can be given as to any particular site.

The company is currently a party to, or otherwise involved in, legal proceedings
in connection with several state and federal  Superfund  sites, two of which are
located on property owned by the company. Except for the Crymes Landfill and M&J
Solvents matters in Georgia, the company believes its liability is de minimis at
each of the sites which it does not own where it has been named as a PRP. At the
Crymes  Landfill  and M&J  Solvents  sites in  Georgia,  since the  matters  are
currently  in the  investigative  phase,  the company  does not know whether its
liability is de minimis but  believes  that its exposure at each of the sites is
not likely to result in a material  adverse effect on the company.  For property
which the company owns on Seaboard Industrial Boulevard in Atlanta, Georgia, the
company has  conducted an  investigation  on its and  adjoining  properties  and
submitted  a  Compliance   Status  Report   ("CSR")  to  the  State  of  Georgia
Environmental Protection Division ("EPD") pursuant to the Georgia Hazardous Site
Response Act.  Until EPD's review of the CSR is completed,  the company will not
be able to determine  if  remediation  will be required,  if the company will be
solely  responsible  for the cost of such  remediation,  or whether such cost is
likely to result in a material adverse effect on the company. For property which
the company  owns on East Paris Street in Tampa,  Florida,  the company has been
requested by the State of Florida to clean up chlorinated solvent  contamination
in the groundwater on the property and on surrounding property known as Seminole
Heights  Solvent Site and to reimburse  costs  already  incurred by the State of
Florida in connection with such contamination.  The company believes that it has
a strong defense due to likely off-site sources of the contamination and because
contamination  from the  property,  if any,  was due to prior owners and not the
company's  operations.  At this time,  it is too early to quantify the company's
potential exposure or the likelihood of an adverse result.

The company is currently evaluating emissions of volatile organic compounds from
its  manufacturing  operations in the Atlanta area to determine  whether it will
need to install  pollution  control equipment or modify its operations to comply
with federal and state air pollution regulations.  Until the current evaluations
are  completed,  the  company  is not  able to  quantify  the  possible  cost of
compliance.  However,  based upon currently available  information,  the company
does not expect any material expenditures to achieve compliance.

In connection with the sale of the North Bros.  business and 29 of the company's
textile  rental plants in 1997, the company has retained  certain  environmental
liabilities.  The  company  has  received  notice  from the buyer of the textile
rental plants of the alleged presence of perchloroethylene  contamination on one
of the  properties  involved  in the sale.  The  company  has since  asserted an
indemnification  claim against the company from which it bought the property. At
this time, it is too early to quantify the company's  potential exposure in this
matter, the likelihood of an adverse result, or the possibility that the company
may be fully or partially indemnified.

The State of New York has filed a lawsuit against the company  alleging that the
company is  responsible  as a successor to Serv-All  Uniform  Rental  Corp.  for
certain environmental liabilities in connection with the Blydenburgh Landfill in
Islip,  New York.  The company  believes that it has a strong defense that it is
not a successor to Serv-All  Uniform  Rental Corp. At this time, it is too early
to quantify the  company's  potential  exposure or the  likelihood of an adverse
result.


7.    INCREASE IN SHARES AUTHORIZED

On January 6, 1999, the stockholders  approved an amendment to the corporation's
Restated  Certificate of Incorporation to increase the corporation's  authorized
shares of common stock from  80,000,000 to  120,000,000.  The additional  shares
will be available for potential  acquisitions,  stock dividends and splits,  and
other purposes  determined by the board of directors to be in the best interests
of the corporation.

8.    SUBSEQUENT EVENTS

On June 21, 1999, the company announced the execution of a definitive  agreement
to  purchase  for  cash  all   outstanding   shares  of  Holophane   Corporation
("Holophane")  for $38.50 per share, or a total of  approximately  $450 million.
Holophane  is a leading  manufacturer  and marketer of premium  quality,  highly
engineered  lighting  fixtures  and  systems  for a wide  range  of  industrial,
commercial,  and outdoor applications.  The company commenced a tender offer for
all of  Holophane's  outstanding  shares on June 25, 1999.  The  transaction  is
subject to a majority  of  Holophane's  shares  being  tendered in the offer and
customary closing conditions. The transaction is expected to be completed in the
fourth quarter of NSI's fiscal 1999 and will be accounted for using the purchase
method of accounting.

In June, 1999, the company sold the envelope segment's  Techno-Aide/Stumb  Metal
Products  ("Techno-Aide")  business to BSC  Enterprises,  LLC.  Techno-Aide is a
leading  manufacturer  and  marketer of  accessory  products  for users of X-ray
equipment  with annual  revenues of  approximately  $4.0  million.  The envelope
segment realized a pretax gain of $2.0 million on the transaction.






Page 10


                      MANAGEMENT'S DISCUSSION AND ANALYSIS

                OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

The following  discussion  should be read in conjunction  with the  consolidated
financial statements and related notes.

National Service Industries is a diversified  service and manufacturing  company
operating in four segments: lighting equipment,  chemicals,  textile rental, and
envelopes.  The company continued to be in strong financial condition at May 31,
1999. Net working capital was $447.6  million,  up from $385.1 million at August
31, 1998, and the current ratio was 3.0 compared with 2.7 at August 31, 1998. At
May 31, 1999,  the company's  debt to  capitalization  increased to 25.2 percent
compared with 12.9 percent at August 31, 1998.

Results of Operations

National Service Industries generated revenue of $569.8 million and $1.6 billion
in the three and nine months ended May 31,  1999,  respectively,  compared  with
revenue of $521.6  million and $1.5  billion in the three and nine months  ended
May 31, 1998,  respectively.  Revenue increased  primarily due to the April 1999
acquisition of Peerless  Lighting  Corporation  ("Peerless"),  the February 1999
acquisition  of Gilmore  Envelope  Corporation  ("Gilmore"),  the September 1998
acquisition of GTY Industries  (d/b/a  "Hydrel"),  the July 1998  acquisition of
Calman  Australia  Pty Ltd,  and the March 1998  acquisition  of Allen  Envelope
("Allen").  Additionally, the revenue increase was due in part to higher revenue
in the base business of the lighting equipment and chemical segments.

Third quarter 1999 net income totaled $30.5 million,  or $.75 per diluted share,
compared to net income of $28.1 million, or $.66 per diluted share, for the same
period in the prior year.  The increase in income  related to the base  business
and   acquisitions   was  offset  by  an  increase  in  net  interest   expense.
Additionally,  the current  quarter  included a $2.3 million  pretax gain on the
sale of industrial  contracts in the textile rental segment.  Net income for the
nine months ended May 31, 1999 increased 3.5 percent to $81.0 million,  or $1.97
per diluted  share,  primarily  due to  increased  volume in the base  business,
income from acquisitions not included in the prior year results, a non-recurring
$3.5 million net pretax gain in the textile rental  segment,  and a $2.3 million
pretax gain on the sale of industrial  contracts in the textile rental  segment.
These items were  partially  offset by an increase in net  interest  expense and
gains recorded on the sale of businesses in the prior year. Diluted earnings per
share also increased due to the reduction of diluted average shares  outstanding
for the three and nine months ended May 31, 1999 by 1.8 million and 2.1 million,
respectively.

The lighting  equipment  segment  reported  revenue of $306.2 million and $862.9
million for the three and nine months ended May 31, 1999, respectively, which is
an increase of 10.3  percent and 7.0 percent  over the same periods in the prior
year.  This increase  resulted from  continued  strength in the  non-residential
construction  market  and  the  acquisitions  of  Peerless  and  Hydrel,  offset
partially by  competitive  pricing  measures.  Operating  profit  increased 10.8
percent to $29.0  million for the  quarter and 7.3 percent to $82.3  million for
the nine months ended May 31, 1999 primarily related to the additional sales and
lower material costs.

Chemical  segment revenue  increased 6.8 percent to $127.2 million for the third
quarter and 8.6 percent to $360.7 million for the nine months ended May 31, 1999
primarily due to continued growth in the retail channel, higher revenue from the
industrial and institutional  distribution  channels, and acquired international
revenue.  Operating  profit of $11.5  million and $29.8 million in the three and
nine months ended May 31,  1999,  respectively,  was  slightly  higher than last
year's  results as increased  revenues  were offset by higher  selling and other
operating costs.

Textile rental segment  revenue was $80.1 million for the quarter  compared with
$79.5  million  for the three  months  ended May 31,  1998 while  third  quarter
operating income  increased to $10.2 million from last year's $8.7 million.  The
increase in operating  income for the three months ended May 31, 1999  primarily
relates  to a $2.3  million  pretax  gain  associated  with the sale of  certain
industrial customer contracts partially offset by non-operating gains recognized
during the same period of the prior year.  Revenue for the nine months ended May
31, 1999  decreased 2.4 percent to $229.3  million  primarily as a result of the
sale of several  industrial  contracts and the  rationalization  of unprofitable
accounts in fiscal  1998.  Year to date 1999  revenue  was also  affected by the
temporary,  negative  impact  of two  hurricanes  on nine  southeastern  plants.
Operating  income for the nine  months  ended May 31,  1999  increased  to $26.1
million from $21.5  million for the same period in the prior year.  Year to date
1999  operating  income  includes a $5.7 million gain  associated  with the 1997
uniform plants divestiture and restructuring activities offset by a $2.2 million
write-off for merchandise  inventory  previously used by unprofitable  accounts.
Additionally,  year to date income  includes a $2.3  million gain on the sale of
industrial  contracts.  Excluding  non-recurring  items in the current and prior
year,  operating  margins for the quarter and year to date  increased due to the
segment's  focus  on  lowering   merchandise  costs  and  improving   production
efficiencies through the daily tracking of operational performance measures.

                                                                         Page 11

During the second quarter of 1999,  management  performed an extensive review of
the liabilities recorded in 1997 in connection with the textile rental segment's
uniform plants  divestiture and restructuring  activities.  In 1997, the textile
rental  segment  accrued  for items  related to the sale of its  uniform  plants
including  environmental  exposures,  severance agreements,  and costs to return
leased facilities to pre-lease  condition.  The company has realized lower costs
than originally  anticipated  associated with these items and, as a result,  has
reduced the  liability  and  recorded a gain of $3.5  million  during the second
quarter of 1999.  Additionally,  in 1997 the textile rental segment  recorded an
impairment charge and accrued for items related to restructuring activities that
primarily  related  to  branch  consolidations  and asset  dispositions.  As the
company has realized lower than  anticipated  costs, the reserve was reduced and
income of $2.2 million was recorded  during the second  quarter of 1999.  During
the current  year,  the  restructuring  reserves  were also reduced by a minimal
amount for payments related to plant consolidations.

Envelope  segment revenue  increased 23.8 percent to $56.4 million for the three
months ended May 31, 1999 primarily due to the Gilmore acquisition. Year to date
1999 revenue increased 26.9 percent to $146.3 million,  largely due to the Allen
and Gilmore acquisitions. Operating profit remained relatively unchanged at $4.4
million for the quarter and increased 24.3 percent to $11.1 million for the nine
months as increased  volumes and materials cost savings were partially offset by
gains realized in 1998 on the sale of idle equipment.

Corporate  expenses  were  lower  during  the three  months  ended May 31,  1999
compared  to  the  same  period  in  the  prior  year,  primarily  due to a gain
recognized  on the sale of a building  in the third  quarter of 1999.  Corporate
expenses during the nine month period approximated last year.

Net  interest  expense was $3.3  million and $8.2  million in the three and nine
months  ended May 31,  1999,  respectively,  compared  with $1.3  million of net
interest  expense and $1.1 million of net interest income for the three and nine
months ended May 31, 1998, respectively. The increase in net interest expense is
due to  lower  interest  income,  resulting  from  the  use  of  the  short-term
investments  generated  from  the  textile  rental  segment's  1997  divestiture
proceeds,  combined with higher interest expense from increased  borrowing.  The
increased  borrowing  is the result of the  issuance of $160 million in publicly
traded  notes  in the  second  quarter  of  1999  to  fund  acquisitions,  share
repurchases,  and internal growth. See "Financing  Activities" below for further
discussion.

The  provision  for income taxes was 37.2 percent of pretax income for the three
and nine months  ended May 31,  1999  compared  with 37.2  percent for the prior
third quarter and 37.1 percent for the prior year to date.

Liquidity and Capital Resources

Operating Activities

Operations  provided  cash of $115.5  million  during the first  nine  months of
fiscal 1999 and used cash of $1.6  million  during the nine months ended May 31,
1998. The increase in operating  cash flow is primarily due to improved  working
capital  management  in  the  lighting  equipment  and  chemical  segments.  The
remaining  improvement  relates to additional tax payments of $38.5 million made
during 1998 primarily  related to the 1997 textile  rental segment  divestitures
that are not repeated in current year results.

Investing Activities

Investing  activities  used cash of $108.0 million for the nine months ended May
31, 1999 compared with cash provided of $110.5  million in the nine months ended
May 31,  1998.  The cash flow in the first  three  quarters  of fiscal  1998 was
higher  because of the  liquidation  of  short-term  investments.  Additionally,
acquisition  spending in the first three  quarters of fiscal 1999 totaled  $62.9
million  compared to $39.4  million  during the  respective  prior year  period.
Current year  acquisition  spending was primarily  related to the September 1998
purchase  by  the  lighting  equipment  segment  of  the  assets  of  Hydrel,  a
manufacturer of architectural-grade light fixtures for landscape,  in-grade, and
underwater  applications;  the February 1999 purchase by the envelope segment of
Gilmore, an envelope manufacturer headquartered in Los Angeles,  California; and
the April  1999  purchase  by the  lighting  equipment  segment of  Peerless,  a
manufacturer of high performance  indirect/direct  suspended  lighting products.
The company  also made minor  acquisitions  related to the  chemical and textile
rental segments. Prior-year acquisition spending of $39.4 million was due to the
chemical  segment's  purchase of Pure Corporation,  a specialty chemical company
with its core  businesses in Indiana,  Pennsylvania,  and New York; the envelope
segment's   purchase   of   Allen   Envelope   Corporation,    a   single-plant,
Pennsylvania-based  envelope manufacturer serving markets in the Northeast;  and
performance payments associated with a 1997 chemical acquisition.

Capital  expenditures were $48.3 million in the first nine months of fiscal 1999
compared  with $56.8  million in the first nine months of fiscal  1998.  Capital
spending in the first three  quarters of fiscal 1999 was primarily  attributable
to the lighting equipment,  textile rental, and envelope segments.  The lighting
equipment  segment's  capital  expenditures  related to the purchase of land and
buildings for a new plant,  manufacturing improvements and upgrades for capacity
expansion, and implementation of


Page 12

new   technology.   Expenditures   in  the  textile   rental  segment  were  for
implementation of new technology,  production  enhancements,  and delivery truck
purchases  and  refurbishments.  The  envelope  segment's  expenditures  related
primarily to manufacturing process improvements,  information systems,  facility
expansion,  and new  folding  capacity.  Capital  spending  in the  first  three
quarters  of  fiscal  1998  consisted   primarily  of  facility  expansions  and
manufacturing process improvements in the lighting equipment segment, efficiency
improvements and replacements of processing equipment and information systems in
the textile  rental  segment,  and facility and  machinery  replacements  in the
envelope segment.  Capital  expenditures for fiscal 1999 are estimated to be $81
million.

Financing Activities

Cash  provided  by  financing  activities  was $33.7  million in the first three
quarters of fiscal 1999 compared  with cash used of $136.3  million in the first
three quarters of fiscal 1998.  Contributing to the change were net purchases of
treasury  stock  which were $38.3  million in the  current  year  versus  $145.2
million in the prior year.  During the first three  quarters of 1999 the company
repurchased approximately 1.2 million of its common shares.

In the second quarter, the company  successfully  completed the issuance of $160
million in ten-year  publicly traded notes bearing a coupon rate of 6.0 percent.
Proceeds were used for the repayment of $80.0 million in short-term  borrowings,
with the remainder  available for general corporate  purposes  including working
capital   requirements,   capital  expenditures,   acquisitions,   repayment  of
outstanding indebtedness, and share repurchases. Dividend payments totaled $38.9
million,  or 95 cents per share,  compared with $39.8  million,  or 92 cents per
share,  for the prior-year  period.  On January 6, 1999,  the regular  quarterly
dividend  rate was  increased  3.2  percent to 32 cents per share,  or an annual
calendar year rate of $1.28 per share.

Management  believes the  company's  planned  level of  acquisition  and capital
spending and general operating cash requirements for the next twelve months will
be sufficiently  covered by current cash balances,  anticipated  cash flows from
operations,  available  funds  from  the  existing  five-year  revolving  credit
facility,  the  company's  active  shelf  registration,  complementary  lines of
credit,  and a new 364-day  revolving  credit  facility  which is expected to be
executed in late July 1999.

As  discussed in Note 8 to the  financial  statements,  the company  commenced a
tender  offer  for  the   outstanding   shares  of  Holophane  for  a  total  of
approximately  $450 million.  The company will initially finance the transaction
with short-term debt.

Environmental Matters

See  Note  6 to the  financial  statements  for a  discussion  of the  company's
environmental matters.

Impact of the Year 2000 Issue

The "Year  2000  Issue"  resulted  from the use of two digits  rather  than four
digits to define the  applicable  year in certain  computer  programs.  With the
coming  millennium,  any of the company's  computer programs that have two-digit
date-sensitive  software  may  interpret  a date of "00" as the year 1900 rather
than the year 2000.  This  could  result in a system  failure or  miscalculation
causing  disruption of the operation of computer hardware and software,  as well
as intelligent manufacturing equipment and processes, and telephony.

Management  is  addressing  the  Year  2000  Issue  in four  phases:  awareness,
assessment, action plan, and plan implementation.  At May 31, 1999, all areas of
the company had completed the first three phases and  implementation of the plan
was approximately 92 percent complete.  Management estimates that the total cost
to be incurred in connection with the Year 2000 Issue will range from $4 million
to $6 million, and substantially all mission critical systems are expected to be
in compliance prior to the end of calendar year 1999. Approximately one-third of
the total cost  reflects  the  redeployment  of  existing  internal  information
technology  resources and should not be incremental costs to the company. At May
31,  1999,  the company had spent  approximately  $4.0  million on the Year 2000
Issue. The cost of the project is being funded through operating cash flows.

At this  time,  the  company  believes  its most  reasonably  likely  worst case
scenario is that key suppliers or service  providers who have not resolved their
own Year 2000 Issue may cause a disruption of service to the company's  critical
business  processes.  Management  has evaluated  the  potential  exposure of the
company to related problems of its customers and suppliers and has implemented a
vendor  certification  process.  While  management  believes  that  its  plan is
sufficient to address the Year 2000 Issue,  management is currently completing a
contingency plan to address the potential for unforeseen  issues that may arise.
These contingency plans include identifying alternative suppliers and increasing
inventory levels. There can be no assurance, however, that such exposures or the
costs of  remediating  any problems  associated  therewith  will not  materially
affect  the  company's  future  business,  financial  condition,  or  results of
operations.






                                                                         Page 13

Cautionary Statement Regarding Forward-Looking Information

From time to time, the company may publish  forward-looking  statements relating
to such  matters  as  anticipated  financial  performance,  business  prospects,
capital expenditures,  technological  developments,  new products,  research and
development  activities,  and similar matters. The Private Securities Litigation
Reform  Act of 1995  provides  a safe  harbor  for  forward-looking  statements.
Statements  herein  which  may  be  considered   forward-looking   include:  (a)
statements  made regarding the company's  current  expectations  or beliefs with
respect  to  the  outcome  and  impact  on  the  company's  business,  financial
condition,  or results of  operations  of the Year 2000 Issue and  environmental
issues; (b) statements made concerning management's expectations with respect to
the  company's  plan  for  strategic  growth;   (c)  statements  made  regarding
management's  expectations  with regard to projected  capital  expenditures  and
future  cash  flows;  and (d)  statements  made  regarding  the  acquisition  of
Holophane.  In order to comply  with the terms of the safe  harbor,  the company
notes that a variety of factors  could cause the  company's  actual  results and
experience  to  differ   materially  from  the  anticipated   results  or  other
expectations expressed in the company's  forward-looking  statements.  The risks
and uncertainties that may affect the operations, performance,  development, and
results of the company's business include without limitation the following:  (a)
the uncertainty of general  business and economic  conditions,  particularly the
potential  for a slow  down  in  non-residential  construction  awards;  (b) the
ability to  achieve  strategic  initiatives,  including  but not  limited to the
ability  to  achieve  sales  growth  across  the  business  segments  through  a
combination  of increased  pricing,  enhanced  sales force,  new  products,  and
improved  customer service,  as well as share repurchases and acquisitions;  (c)
unforeseen competitive reactions to the Holophane  acquisition;  and (d) loss of
key sales and management personnel due to the acquisition of Holophane.






Page 14

                           PART II. OTHER INFORMATION




Item 6. Exhibits and Reports on Form 8-K

(a) Exhibits are listed on the Index to Exhibits (page 16).

(b) There were no reports on Form 8-K for the three months ended May 31, 1999.







                                                                         Page 15


                                   SIGNATURES



Pursuant  to the  requirements  of the  Securities  Exchange  Act of  1934,  the
registrant  has duly  caused  this  report  to be  signed  on its  behalf by the
undersigned thereunto duly authorized.


                                               NATIONAL SERVICE INDUSTRIES, INC.
                                                         REGISTRANT


DATE  July 14, 1999                                /s/ David Levy
                                                       DAVID LEVY
                                        EXECUTIVE VICE PRESIDENT, ADMINISTRATION
                                                       AND COUNSEL



DATE  July 14, 1999                               /s/ Brock Hattox
                                                      BROCK HATTOX
                                               EXECUTIVE VICE PRESIDENT AND
                                                 CHIEF FINANCIAL OFFICER







Page 16

                                INDEX TO EXHIBITS

                                                                                    
                                                                                    Page No.
EXHIBIT 10(iii)A                Management Contracts and Compensatory
                                Arrangements:

                           (1)  Employment  Letter Agreement  between National         18
                                Service   Industries,   Inc.   and  George  H.
                                Gilmore, Jr., Dated May 5, 1999

                           (2)  Severance Protection Agreement between National        Reference is made to Exhibit 10(iii)A(c)
                                Service Industries, Inc. and George H. Gilmore, Jr.,   of registrant's Form 10-Q for the quarter
                                Dated as of June 1, 1999                               ended February  29, 1996 and to Exhibit
                                                                                       10(iii)A(6)(b) of registrant's Form 10-K
                                                                                       for the fiscal year ended August 31, 1996,
                                                                                       which are incorporated herein by reference.

                           (3)  Bonus Letter Agreement between National Service        Reference is made to Exhibit 10(iii)A(j) of
                                Industries, Inc. and George H. Gilmore,  Jr.,          registrant's Form 10-K for the fiscal year
                                Dated as of June 1,  1999                              ended August 31, 1989, to Exhibit
                                                                                       10(iii)A(d) of the registrant's Form 10-Q
                                                                                       for the quarter ended February 29, 1996,
                                                                                       and to Exhibit 10(iii)A(7)(b) of registrant's
                                                                                       Form 10-K for the fiscal year ended August
                                                                                       31, 1996, which are incorporated herein by
                                                                                       reference.

                           (4)  Incentive    Stock   Option    Agreement   for         23
                                Executive  Officers  Effective  Beginning June
                                1, 1999 between National  Service  Industries,
                                Inc. and George H. Gilmore, Jr.

                           (5)  Nonqualified   Stock  Option   Agreement   for         30
                                Executive  Officers  Effective  Beginning June
                                1, 1999 between National  Service  Industries,
                                Inc. and George H. Gilmore, Jr.

                           (6)  Aspiration    Achievement    Incentive   Award         36
                                Agreement for the Performance  Cycle beginning
                                September  1, 1997  between  National  Service
                                Industries,  Inc. and George H. Gilmore,  Jr.,
                                Dated June 1, 1999.

                                [a  confidential  portion  of  which  has been
                                omitted   and   filed   separately   with  the
                                Securities and Exchange Commission]

                           (7)  Aspiration    Achievement    Incentive   Award         45
                                Agreement for the Performance  Cycle beginning
                                September  1, 1998  between  National  Service
                                Industries,  Inc. and George H. Gilmore,  Jr.,
                                Dated June 1, 1999.

                                [a  confidential  portion  of  which  has been
                                omitted   and   filed   separately   with  the
                                Securities and Exchange Commission]





                                                                         Page 17

                          INDEX TO EXHIBITS (Continued)                             Page No.



                           (8)  Amendment of Aspiration  Achievement Incentive         54
                                Award   Agreement   and   Election   Form  for
                                Performance   Cycle  Ending  August  31,  1999
                                between National Service Industries, Inc. and

                                (a)   James S. Balloun
                                (b)   Brock A. Hattox
                                (c)   David Levy
                                (d)   Stewart A. Searle III

                           (9)  Amendment   No.   1   to   National    Service         60
                                Industries,    Inc.   Long-Term    Achievement
                                Incentive Plan, Dated April 7, 1999

Exhibit 27                      Financial Data Schedule                                61