Page 1 of 100
                                                        Exhibit Index on Page 12

                                    FORM 10-Q

                                  UNITED STATES
                       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, 1998                     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  -  41,447,354  shares  as of June  30,  1998.




 Page 2




               NATIONAL SERVICE INDUSTRIES, INC. AND SUBSIDIARIES

                                      INDEX


                                                                        Page No.

PART I.  FINANCIAL INFORMATION

      ITEM 1.  FINANCIAL STATEMENTS

           CONSOLIDATED BALANCE SHEETS -
           MAY 31, 1998 AND AUGUST 31, 1997                                    3

           CONSOLIDATED STATEMENTS OF INCOME -
           THREE MONTHS AND NINE MONTHS ENDED
           MAY 31, 1998 AND 1997                                               4

           CONSOLIDATED STATEMENTS OF CASH FLOWS -
           NINE MONTHS ENDED MAY 31, 1998 AND 1997                             5

           NOTES TO CONSOLIDATED FINANCIAL STATEMENTS                        6-7

      ITEM 2.  MANAGEMENT'S DISCUSSION AND ANALYSIS OF
           FINANCIAL CONDITION AND RESULTS OF OPERATIONS                     8-9

PART II.  OTHER INFORMATION

      ITEM 2. CHANGES IN SECURITIES AND USE OF PROCEEDS                       10

      ITEM 6. EXHIBITS AND REPORTS ON FORM 8-K                                10

SIGNATURES                                                                    11

EXHIBIT INDEX                                                                 12



                                                                          Page 3

               NATIONAL SERVICE INDUSTRIES, INC. AND SUBSIDIARIES

                           CONSOLIDATED BALANCE SHEETS
              (Dollar amounts in thousands, except per-share data)

                                                       May 31,       August 31,
                                                        1998            1997
                                                     
ASSETS                                                  (Unaudited)
Current Assets:
      Cash and cash equivalents                          $ 28,929        $57,123
      Short-term investments                                   58        205,302
      Receivables, less reserves for doubtful
      accounts of $6,830 at May 31, 1998 and
      $4,302 at August 31, 1997                           288,940        258,689
      Inventories, at the lower of cost
     (on a first-in, first-out basis) or market           200,969        179,046
      Linens in service, net of amortization               59,274         60,805
      Deferred income taxes                                17,795         13,077
      Prepayments                                           7,964          6,716
                                                    
           Total Current Assets                           603,929        780,758
                                                    

Property, Plant, and Equipment, at cost:
      Land                                                 19,852         19,911
      Buildings and leasehold improvements                145,874        138,933
      Machinery and equipment                             481,290        434,194
                                                    
           Total Property, Plant, and Equipment           647,016        593,038
      Less-Accumulated depreciation and amortization      383,005        356,308
                                                    
           Property, Plant, and Equipment-net             264,011        236,730
                                                    

Other Assets:
      Goodwill and other intangibles                       84,562         50,166
      Other                                                39,298         38,698
                                                    
           Total Other Assets                             123,860         88,864
                                                    
                Total Assets                         $    991,800     $1,106,352
                                                    

LIABILITIES AND STOCKHOLDERS' EQUITY
Current Liabilities:
      Current maturities of long-term debt                    $75           $116
      Notes payable                                        56,736          5,773
      Accounts payable                                     92,276        101,512
      Accrued salaries, commissions, and bonuses           31,190         34,776
      Current portion of self-insurance reserves           12,115         12,540
      Accrued taxes payable                                    --         38,351
      Other accrued liabilities                            74,285         88,932
                                                    
           Total Current Liabilities                      266,677        282,000
                                                    

Long-Term Debt, less current maturities                    26,163         26,197
                                                    
Deferred Income Taxes                                      46,308         34,093
                                                    
Self-Insurance Reserves, less current portion              45,494         57,056
                                                    
Other Long-Term Liabilities                                42,914         35,193
                                                    
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,
      80,000,000 shares authorized,
      57,918,978 shares issued                             57,919         57,919
      Paid-in capital                                      28,238         25,521
      Retained earnings                                   878,655        841,045
                                                    
                                                          964,812        924,485
      Less-Treasury stock, at cost 
      (16,477,103 shares at May 31, 1998 and 13,719,834
      shares at August 31, 1997)                          400,568        252,672
                                                    
        Total Stockholders' Equity                        564,244        671,813
                                                    
           Total Liabilities and Stockholders' Equity$    991,800     $1,106,352
                                                    

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)
              (Dollar amounts in thousands, except per-share data)


                                                          THREE MONTHS ENDED                   NINE MONTHS ENDED
                                                                MAY 31                               MAY 31
                                                    
                                                         1998            1997                 1998            1997
                                                    
                                                                                                   

Sales and Service Revenues:
      Net sales of products ......................   $   442,144    $   383,493   $ 1,253,529    $ 1,136,640
      Service revenues ...........................        79,464        131,786       235,073        389,768
           Total Revenues ........................       521,608        515,279     1,488,602      1,526,408

Costs and Expenses:
      Cost of products sold ......................       269,019        231,601       765,854        703,518
      Cost of services ...........................        45,270         72,814       136,366        223,589
      Selling and administrative expenses ........       161,618        160,842       464,757        474,137
      Interest (income) expense, net (1) .........         1,304          1,102        (1,092)         2,702
      Other (income) expense, net (1) ............          (392)         2,112        (1,739)         4,127
           Total Costs and Expenses ..............       476,819        468,471     1,364,146      1,408,073

Income before Provision for Income Taxes .........        44,789         46,808       124,456        118,335  

Provision for Income Taxes .......................        16,650         17,374        46,161         43,722

Net Income .......................................   $    28,139    $    29,434   $    78,295    $    74,613

Per Share:
      Basic earnings per share ...................   $       .67    $       .65   $      1.83    $      1.64

        Weighted Average Number of Shares
           Outstanding (thousands) ...............        42,001         44,996        42,763         45,371

      Diluted earnings per share .................   $       .66    $       .65   $      1.81    $      1.63

        Adjusted Weighted Average Number of Shares
Outstanding (thousands) ..........................        42,659         45,348        43,300         45,663

      Cash dividends .............................   $       .31    $       .30   $       .92    $       .89




(1)   Prior-year   amounts  have  been  restated  to  conform  to  current  year
presentation.










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)
                          (Dollar amounts in thousands)

                                                              NINE MONTHS ENDED
                                                                    MAY 31
                                                             1998          1997
Cash Provided by (Used for) Operating Activities
  Net income ........................................... $  78,295    $  74,613
  Adjustments  to  reconcile  net income to net cash
    provided by  operating activities:
      Depreciation and amortization ....................    36,108       44,449
      Provision for losses on accounts receivable ......     3,908        2,654
      Gain on the sale of property, plant, and equipment    (3,417)        (198)
      Gain on the sale of businesses ...................    (2,402)        (972)
      Change in noncurrent deferred income taxes .......    12,216       (2,375)
      Change in assets and liabilities net of effect
        of acquisitions and divestitures-
          Receivables ..................................   (28,309)         914
          Inventories and linens in service, net .......   (19,683)       3,347
          Deferred income taxes ........................    (4,636)      (1,994)
          Prepayments and other ........................      (971)      (1,699)
          Accounts payable and accrued liabilities .....   (68,834)     (15,067)
          Self-insurance reserves and
            other long-term liabilities ................    (3,841)      (2,306)
              Net Cash Provided by (Used for)
                 Operating Activities ..................    (1,568)     101,366

Cash Provided by (Used for) Investing Activities
  Change in short-term investments .....................   205,244           (2)
  Purchases of property, plant, and equipment ..........   (56,829)     (34,215)
  Sale of property, plant, and equipment ...............     4,717        3,170
  Sale of businesses ...................................     3,011       31,380
  Acquisitions .........................................   (39,424)      (4,320)
  Change in other assets ...............................    (6,230)       4,439
    Net Cash Provided by Investing Activities ..........   110,489          452

Cash Provided by (Used for) Financing Activities
  Change in notes payable ..............................    49,659      (10,796)
  Change in long-term debt .............................      (910)         862
  Recovery of investment in tax benefits ...............      --            661
  Deferred income taxes from investment
  in tax benefits ......................................      --         (1,972)
  Purchase of treasury stock, net ......................  (145,179)     (69,465)
  Cash dividends paid ..................................   (39,842)     (40,657)
    Net Cash Used for Financing Activities .............  (136,272)    (121,367)

Effect of Exchange Rate Changes on Cash ................      (843)         318

Net Change in Cash and Cash Equivalents ................   (28,194)     (19,231)

Cash and Cash Equivalents at Beginning of Period .......    57,123       58,662

Cash and Cash Equivalents at End of Period ............. $  28,929    $  39,431

Supplemental Cash Flow Information:
      Income taxes paid during the period .............. $  76,382    $  41,744
      Interest paid during the period ..................     4,929        4,074

Noncash Investing and Financing Activities:
      Noncash aspects of sale of businesses--
           Receivables incurred ........................ $    --      $     391
           Liabilities removed .........................       165          477

      Noncash aspects of acquisitions--
           Liabilities assumed or incurred ............. $   4,891    $  22,440
           Treasury stock issued .......................      --         20,522

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)

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, 1997 has been  derived  from  audited  statements.  These  statements
reflect all 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, 1998, the  consolidated  results of operations
for the  three  months  and nine  months  ended May 31,  1998 and 1997,  and the
consolidated cash flows for the nine months ended May 31, 1998 and 1997. 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, 1997.

The results of  operations  for the three  months and nine months  ended May 31,
1998 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:


                                                     Three Months Ended May 31
                                       Sales and Service
                                           Revenues               Operating Profit (Loss)
                                      1998           1997           1998          1997
                                                                     
                                                         (In thousands)
Lighting Equipment ...........   $   277,497    $   237,775    $    26,123   $    23,662
Chemical .....................       119,111        109,813         11,321         9,438
Textile Rental ...............        79,464        131,786          8,707        14,040
Envelope .....................        45,536         34,404          4,428         2,969
Other ........................          --            1,501           --             472
                                 $   521,608    $   515,279         50,579        50,581
Corporate ....................                                      (4,486)       (2,671)
Interest income (expense), net                                      (1,304)       (1,102)
Total ........................                                 $    44,789        46,808

                                                     Nine Months Ended May 31
                                       Sales and Service
                                           Revenues               Operating Profit (Loss)
                                      1998           1997           1998          1997
                                                         (In thousands)
Lighting Equipment ...........   $   806,233    $   688,943    $    76,649   $    65,679
Chemical .....................       332,056        292,990         28,467        26,985
Textile Rental ...............       235,073        389,768         21,525        29,478
Envelope .....................       115,240         99,165          8,896         7,720
Other ........................          --           55,542           --           1,419
                                 $ 1,488,602    $ 1,526,408        135,537       131,281
Corporate ....................                                     (12,173)      (10,244)
Interest income (expense), net                                       1,092        (2,702)
Total ........................                                 $   124,456   $   118,335






                                                                          Page 7

3. INVENTORIES:

Major  classes of  inventory  as of May 31,  1998 and  August  31,  1997 were as
follows:

                                                         May 31,      August 31,
                                                          1998           1997
                                                             (In thousands)
Raw Materials and Supplies ...................         $ 78,767       $ 71,266
Work-in-Process ..............................           10,452         10,572
Finished Goods ...............................          111,750         97,208
     Total ...................................         $200,969       $179,046

4.  NEW ACCOUNTING STANDARD

During the quarter ended  February 28, 1998,  the company  adopted  Statement of
Financial  Accounting  Standards (SFAS) No. 128,  "Earnings per Share." SFAS No.
128 supersedes Accounting Principles Board Opinion No. 15, "Earnings per Share,"
and  promulgates  new  accounting  standards for the  computation  and manner of
presentation of the company's  earnings per share.  The adoption of SFAS No. 128
did not have a material  impact on the  computation or manner of presentation of
the company's  earnings per share as previously  presented under APB 15. Exhibit
11 represents a reconciliation  of basic and diluted weighted average shares and
a calculation of earnings per share using the guidelines of SFAS No. 128.

5.  ENVIRONMENTAL MATTERS

The company's  operations,  as well as other similar operations,  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
prevent 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
its 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.

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 financially
viable potentially responsible parties ("PRPs"),  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 parties,  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,  one of which is
located on property owned by the company.  Except for the Crymes Landfill matter
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 Site,  since the matter is currently in the  investigative  phase,  the
company does not know whether its  liability is de minimis but believes that its
exposure at the site is not likely to result in a material adverse effect on the
company.  For  the  property  which  the  company  owns on  Seaboard  Industrial
Boulevard   in  Atlanta,   Georgia,   the  company  has  agreed  to  conduct  an
investigation on its and adjoining  properties pursuant to the Georgia Hazardous
Site Response Act. Until that  investigation 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.

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 expenditures which may have to be made to achieve compliance
to be material.

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  for which it has  established  reserves.  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. Inasmuch as the company has only recently received
notice of the buyer's claim, 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.

In November 1997, the Environmental Protection Agency ("EPA") proposed stringent
new wastewater  discharge  limits,  which would become  effective in the future,
that could  apply to  certain  facilities  operated  by the  company.  While the
company does not believe that these regulations  should apply to its operations,
if the regulations are adopted as proposed,  following  adoption,  the company's
cost to  comply  with  them  could be as much as  $6-million  to  $9-million  of
equipment  expenditures spread over a three-year period,  which the company does
not  believe  would  be  material  to its  financial  condition  or  results  of
operations.






Page 8

                      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.

Financial Condition

National Service Industries  continued in strong financial  condition at May 31,
1998.  Net working  capital  declined to $337.3  million from $498.8  million at
August 31, 1997,  as the company  reinvested  to support its growth and returned
other funds to its shareholders through share repurchases. The current ratio was
2.3 compared with 2.8 as of year end. Cash and short-term investments were $30.0
million,  compared  with $262.4  million at August 31. For the nine months ended
May  31,  the  company  invested  $96.3  million  in  capital  expenditures  and
acquisitions.  In addition,  the company spent $145.2  million to repurchase 3.0
million shares of its common stock.  Operating  activities  used $1.6 million of
cash  primarily for  investment  in  inventories  to support  sales growth,  the
payment of taxes  associated  with the gain on the 1997 disposal of linen plants
and funding of restructuring  activities.  Cash provided by operating activities
was $101.4  million for the nine months  last year.  As planned,  the percent of
debt to total  capitalization was 12.8 percent, up from 4.6 percent at August 31
due to interim borrowings under a committed credit facility.

Capital expenditures,  exclusive of acquisition spending, were $56.8 million for
the nine months this year,  compared with $34.2 million for the same period last
year. For the current-year nine months,  the lighting equipment segment invested
in facility  expansions  and  manufacturing  process  improvements,  the textile
rental  segment   invested  in  efficiency   improvements  and  replacements  of
processing  equipment and information systems, and the envelope segment invested
in facility and machinery replacements.  Prior-year spending consisted primarily
of lighting  equipment segment  facilities and process  improvements,  equipment
replacements, and tooling for new products and textile rental segment facilities
improvements and equipment replacements.

Current-year  acquisition  spending of $39.4 million resulted primarily from 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  prior-year  chemical   acquisition.
Prior-year  spending  of $4.3  million in cash was the  result of: the  chemical
segment's  purchase  of chemical  products  companies  in Ohio and  Canada;  the
lighting  equipment  segment's  acquisition of Lumaid,  Inc., a small  emergency
lighting products  manufacturer in Canada; and the third quarter acquisition for
an initial  payment of $20.5  million in stock of  Enforcer  Products,  Inc.,  a
specialty chemical company with a retail focus.

Cash from  divestitures  totaled $3.0 million for the current year due primarily
to the textile rental  segment's sale of  non-strategic  operations.  Prior-year
divestitures  generated  $31.4 million from the sale of the insulation  business
for $27.1  million  and the sale of  non-strategic  textile  rental  businesses.
During the prior-year  third quarter,  the company agreed to sell, at a gain, 29
uniform and linen plants to G&K Services, Inc. The sale was completed during the
fourth quarter for approximately $280 million in cash.

During the nine months ended May 31, 1998, year-end  restructuring reserves were
reduced by $4.4 million,  primarily for exit costs  associated with the disposal
of facilities and consolidation of operations and severance-related costs.

Dividend  payments  totaled $39.8 million,  or 92 cents per share,  for the nine
months,  compared with $40.7 million, or 89 cents per share, for the same period
a year ago.  Effective  January 1998,  the regular  quarterly  dividend rate was
increased 3.3 percent to 31 cents per share,  or an annual calendar year rate of
$1.24 per  share.  During  the nine  months  ended  May 31,  1998,  the  company
repurchased  3.0 million of its common  shares,  before  reissuances  related to
acquisitions and stock options.

For  the  periods  presented,  capital  expenditures,   working  capital  needs,
dividends,  acquisitions,  and share  repurchases  were financed  primarily with
internally generated funds supplemented by borrowings through a committed credit
facility.  European operations were supplemented by short-term borrowings in the
European market.  Contractual  commitments for capital and acquisition  spending
during the coming twelve months total $26.1 million.  The company expects actual
capital  expenditures in 1998 to be significantly  higher than the 1997 level in
support  of  the  company's  growth  plans.  Capital   expenditures,   excluding
acquisition  spending,  were $49 million in 1997,  $66 million in 1996,  and $59
million in 1995.  Late in fiscal  1996,  the company  negotiated  a $250 million
multi-currency  committed credit facility with eleven domestic and international
banks. The company has  complimentary  lines of credit totaling $62 million,  of
which $40 million is  available  domestically  and $22 million is available on a
multi-currency  basis.  Current liquid assets,  internally  generated funds, and
borrowing, either through the existing facility or the debt capital markets, are
expected to meet anticipated  general  operating cash  requirements for the next
twelve months.

Over the past year, the company has devoted  significant  internal  resources in
addressing  the  expected  impact  of the Year  2000  issue  on its  information
technology  infrastructure.  At this point in time, the company does not believe
that its  expenditures  relating  to the Year 2000  issue  will have a  material
impact on its financial position,  results of operations,  liquidity,  or future
business   strategy.   The  company   expects  to  have  completed  all  systems
modifications prior to the year 2000.


                                                                          Page 9

Results of Operations

National  Service  Industries'  sales for the third  quarter  ended May 31, 1998
increased  slightly to $521.6 million versus last year's $515.3  million.  Third
quarter net income was $28.1  million,  or 66 cents diluted  earnings per share,
compared with prior year's net income of $29.4 million, or 65 cents diluted EPS.
Diluted EPS  increased  1.5 percent on a 4.4 percent  decline in net income as a
result of 2.7 million fewer average shares outstanding.

For the first nine months of fiscal year 1998,  NSI's sales declined 2.5 percent
to $1.49  billion  versus last year's $1.53  billion.  Net income  increased 4.9
percent to $78.3 million versus last year's $74.6 million. Diluted EPS increased
11.0 percent, reflecting increased income and a 2.4 million reduction in average
shares outstanding. The 1998 year-to-date earnings included pretax gains of $5.8
million from the sale of assets  compared with $7.3 million from asset sales and
accounting policy changes for ancillary textile rental revenues in 1997.

The lighting equipment segment reported sales of $277.5 million, up 16.7 percent
over last year's third  quarter  sales of $237.8  million.  For the nine months,
sales were $806.2 million,  a 17.0 percent increase over the prior year to date.
Continued demand in  non-residential  construction and market  acceptance of new
Lithonia  products  contributed to the sales growth.  Operating income increased
10.4 percent to $26.1  million for the quarter and 16.7 percent to $76.6 million
for the nine months.  Operating margin rates for the third quarter were slightly
below  those  of  the  same  period  a  year  ago  due  to  increased  marketing
expenditures and were consistent on a comparative year-to-date basis.

Chemical segment sales, benefiting from a prior-year acquisition,  increased 8.5
percent  to $119.1  million  for the third  quarter  and 13.3  percent to $332.1
million for the year to date,  due largely to  incremental  revenues from retail
distribution channels.  Operating income increased 20.0 percent to $11.3 million
for the  quarter and 5.5 percent to $28.5  million  for the nine  months.  While
margin  rates for the  quarter  improved  due to a reduction  in  administrative
costs,  year-to-date  margin rates were slightly  below last year's due to costs
associated    with    growth    initiatives    in   both    the    retail    and
industrial/institutional distribution channels.

Textile rental segment sales were $79.5 million for the third quarter and $235.1
million  for the nine  months,  each a 40 percent  decline  from the  respective
prior-year  amounts.  Operating  income declined to $8.7 million for the quarter
from $14.0 million last year and was $21.5 million for the nine months  compared
with $29.5  million the prior year to date.  The declines in sales and operating
income were a result of the uniform plant  divestitures  completed in the fourth
quarter  of  fiscal  year  1997.  After  considering   divested  operations  and
non-operating  gains,  revenue  was in line with the prior  year's  results  and
operating income improved slightly. Since the 1997 divestitures,  National Linen
Service has continued to improve  underlying  margin rates and generate positive
economic profit.

Envelope  segment  sales  increased  32.4 percent to $45.5 million for the third
quarter and 16.2 percent to $115.2  million for the nine months.  The  quarter's
increased  sales  volume  was due  largely  to the  March  acquisition  of Allen
Envelope,  which also  benefited  year-to-date  sales volume.  Operating  profit
increased for both the quarter and year to date due to  additional  sales volume
and a $0.6 million gain on the sale of non-productive equipment.

During the third  quarter,  the company  repurchased  1.0 million  shares of its
common stock under its buyback program, bringing the total to 3.0 million shares
repurchased  during the fiscal  year to date.  To finance  third  quarter  share
repurchases and acquisitions,  the company began borrowing funds, which resulted
in an increase in net interest expense. In addition, corporate expense increased
due to accruals for competitive  incentives  designed to encourage higher levels
of performance.

The provision for income taxes was 37.2 percent compared to 37.1 percent for the
prior third quarter and was 37.1 percent compared to 36.9 percent the prior year
to date.

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.  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;  and (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.







Page 10





                           PART II. OTHER INFORMATION


Item 2.  Changes in Securities and Use of Proceeds

On March 12,  1997,  the  company  acquired  all of the issued  and  outstanding
capital  stock of Enforcer  Products,  Inc.  ("Enforcer")  and issued as partial
consideration  for the acquisition an aggregate of 667,676  restricted shares of
Common  Stock of the  company to  Enforcer's  three  shareholders,  each of whom
qualified as an "accredited  investor"  within the meaning of the Securities Act
of 1933 (the  "Act").  The Common Stock issued to  Enforcer's  shareholders  was
valued at  approximately  $25.5  million for  purposes of the  acquisition.  The
company relied on Section 4(2) of the Act as its exemption from the registration
requirements.


Item 6. Exhibits and Reports on Form 8-K

(a) Exhibits are listed on the Index to Exhibits (page 12).

(b) There were no reports on Form 8-K for the three months ended May 31, 1998.







                                                                         Page 11


                                   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, 1998           /s/ David Levy
                                   DAVID LEVY
                    EXECUTIVE VICE PRESIDENT, ADMINISTRATION
                                   AND COUNSEL



DATE  July 14, 1998           /s/ Brock Hattox
                                  BROCK HATTOX
                          EXECUTIVE VICE PRESIDENT AND
                             CHIEF FINANCIAL OFFICER






Page 12

                                INDEX TO EXHIBITS


                                                                        Page No.

EXHIBIT 10(i)A            US$250,000,000 Credit Agreement 
                          dated as of July 23, 1996 among
                          National Service Industries, Inc., 
                          Certain of its Subsidiaries, 
                          Certain Listed Banks, Wachovia Bank
                          of Georgia, N.A., as Agent, and
                          Nationsbank, N.A. (South) and
                          Suntrust Bank, Atlanta, as Co-Agents              13

EXHIBIT 11                Computation of Net Income
                          per Share of Common Stock                         99

EXHIBIT 27                Financial Data Schedule                          100