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                                                                 EXHIBIT 99(e)


   
           Laidlaw Environmental Services            Safety-Kleen
                    [Logo]                              [Logo]
    


                           A POWERFUL COMBINATION


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                                 REQUEST FOR
                             LEVEL PLAYING FIELD



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                       REQUEST FOR LEVEL PLAYING FIELD


                      Question                   Answer
 
                What does Laidlaw           A level playing field
                Environmental want          that maximizes value 
                from Safety-Kleen?          for all Safety-Kleen
                                            shareholders


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HISTORY OF STONEWALLING
- ------------------------------------------------------------------------------- 

      LAIDLAW ENVIRONMENTAL                                      SAFETY-KLEEN

Initial Proposal      9/24                                         Rebuffed

Offer to acquire
Safety-Kleen for $25.85(1)    11/3                                 Rebuffed

Request for shareholder list and a
special meeting to restore voting rights    11/13                  Rebuffed

Increased Offer to $30.00(2)                         11/20         Rebuffed


   
(1)  $14.00 in cash and 2.4 shares of LLE stock valued at 11/3/97.
(2)  $15.00 in cash (subject to reduction for certain break-up fees, new 
     severance costs and certain expenses of Safety-Kleen) and $15.00 in 
     LLE stock assuming LLE stock price remains within the collar 
     ($4.28571 - $5.35714).
    




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SAFETY-KLEEN SHAREHOLDERS CAN 
BREAK THROUGH THE WALL
- ------------------------------------------------------------------------------- 

                                              - Laidlaw Environmental's
A "YES" VOTE ASSURES THE                        proposal conditioned on
SAFETY-KLEEN                                    ability to vote shares 
AUCTION CONTINUES

                                              - Court ordered Safety-
                                                Kleen to call shareholder
                                                meeting


                                              - Shareholders being asked
                                                simply to restore full
                                                voting rights
 

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                              VOTE "NO" TO THE
                                BUYOUT MERGER
 



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VOTE "NO" TO THE BUYOUT MERGER
- ---------------------------------------------------------------------------

- - Safety-Kleen Board failed to conduct a fair auction

- - Failed to maximize shareholder value

- - Excessive and unjustified "break-up" fees reduce value to shareholders

- - Buyout Merger highly conditional - commitment from only a shell corporation;
  numerous conditions precedent

- - No independent fairness opinion

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SAFETY-KLEEN BOARD FAILED TO 
CONDUCT A FAIR AUCTION
- -----------------------------------------------------------------------------

- - Exercised absolute control over sale process
  - standstill agreement
  - bidding by "invitation only"

- - Directed process to entrench management
  - significant equity stake for management
  - no reduction in headquarters staff

- - No Free Lunch:  no synergies equals lower value for shareholders
 

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LAIDLAW ENVIRONMENTAL'S $30.00 OFFER 
IS SUPERIOR
- ------------------------------------------------------------------------------ 
   



                           BUYOUT MERGER                   LLE OFFER
                        -------------------       -----------------------------
                                            
PRICE                   $27.00                    $30.00(1)

CONSIDERATION           Cash                      $15.00 cash(1)/$15.00 stock(1)

COLLAR                  NA                        $4.28571 - $5.35714

TOTAL VALUE(2)          $1.9 million              $2.1 billion

FINANCING               Buyout Group equity       Commitment
                        and debt commitment       from T-D Bank
                        from Chase    

EXPECTED CLOSING        First quarter 1998        First quarter 1998

TAX TREATMENT           Fully taxable             Potential for tax deferral
                                                  on stock component

APPROVAL                Customary                 Customary

SYNERGIES               None(3)                   $100 - $130 million
                        

    

(1) $15.00 in cash (subject to reduction for certain break-up fees, new
    severance costs and certain expenses of Safety-Kleen) and $15.00 in 
    LLE stock assuming LLE stock price remains within the collar 
    ($4.28571 - $5.35714).
(2) Includes the assumption of $246 million of debt.
(3) Attributed to Allen Fracassi, Philip Services President and CEO, at
    November 20, 1997 "by invitation only" presentation to analysts and
    institutional shareholders.


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BUYOUT MERGER BELOW MARKET 
- ----------------------------------------------------------------------------- 
           [Graph of Safety-Kleen Share price over time, showing that
           the Buyout Merger Price of $27 per Share is lower than the
                   Safety-Kleen trading prices since 11/20.]

$30
$29
$28
$27
$26
$25
$24

      11/13   11/20   11/27   12/4   12/11



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SEEKING COURT RULING THAT SAFETY-KLEEN 
BOARD VIOLATED FIDUCIARY DUTY 
- -------------------------------------------------------------------------

- - Break-up fees and expenses are excessive and unjustified

  - 5% of equity value
  - payable even if shareholders vote down Buyout Merger
  - Buyout Group's "Second Bite" chills bidding
  - 9-month tail

- -Safety-Kleen Board granted break-up fees in the face of Laidlaw Environmental's
 proposal and publicly stated willingness to increase its offer
 

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BREAK-UP FEES AND EXPENSES REDUCE SHAREHOLDER VALUE
- ----------------------------------------------------------------------------
THE BUYOUT GROUP MERGER IS TAKING MONEY AWAY FROM SHAREHOLDERS

Shareholders Value ---->  Buyout Group Mgmt.   [Flow Chart]




- - Break-Up Fees & Expenses
  $75 million ($1.28 per share)

- - Severance Costs
  $50 million ($0.86 per share)

- - Total Burden $125 million ($2.14 per share)


Break-up Fees and Expenses total 5% of equity value, nearly twice the level
approved by courts in other transactions

Total burden approved by Board = 8% of equity value

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BUYOUT MERGER HIGHLY CONDITIONAL
- ---------------------------------------------------------------------------

- - Debt and equity commitments subject to numerous contingencies

- - "Fraudulent Conveyance" specifically excluded from William Blair Opinion 
  - Solvency opinion yet to be delivered
  - No independent fairness opinion

- - Safety-Kleen's only recourse for a breach by the Buyout Group would be against
  the "shell" corporation



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                    LAIDLAW ENVIRONMENTAL & SAFETY-KLEEN:
                           A POWERFUL COMBINATION
 

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LAIDLAW ENVIRONMENTAL PROFILE
- --------------------------------------------------------------------------

- - Largest and most integrated hazardous and industrial waste management company
  in North America

- - Leading industry consolidator in North America

- - Seasoned management team with a proven track record of business integration
  success - two major acquisitions and integrations within the past three years

- - More than 30% of revenues from non-hazardous industrial waste management

- - Low cost base-efficient operator

- - Strong, well-positioned firm with significant Laidlaw Inc. sponsorship


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BENEFIT TO SAFETY-KLEEN SHAREHOLDERS
- ------------------------------------------------------------------------

- - Superior near term value
- - Significant upside potential based on anticipated 
  synergy level of $100+ million
- - Attractive acquisition currency
- - Value protected via collar
- - No financing contingency
 

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SIGNIFICANT UPSIDE POTENTIAL BASED ON
EXPECTED SYNERGIES OF $100+ MILLION
- --------------------------------------------------------------

- - SG&A Reductions
- - Waste Internalization
- - Processing Site Consolidation
- - Service Center Consolidation
 

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SIGNIFICANT SYNERGY POTENTIAL
- ----------------------------------------------------------- 
[Map of Safety-Kleen and Laidlaw Environmental Facility
Locations in North America]


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PROVEN TRACK RECORD OF SYNERGY REALIZATION
- --------------------------------------------------------- 
($ in millions)
                                 SYNERGIES ACHIEVED(1)
                                   IN ROLLINS MERGER
                                 ---------------------
Personnel Reductions                     $48

Plant Closure                             16

SG&A Function                              8
                                        ----
     Total Cash Savings                   72

Depreciation Reduction                    18
                                        ----
     Total Savings                       $90
                                        ====


(1) On an annualized basis.


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ATTRACTIVE ACQUISITION CURRENCY
- --------------------------------------------------------------------------
[Graph representing closing prices of Laidlaw Environmental, Peer Group, and
the S&P 500 since the consummation of the Rollins Merger. Laidlaw Environmental
significantly outperforms both its Peer Group and the S&P 500]
 
                 DAILY TRADING SINCE CLOSE OF ROLLINS MERGER
                
             
   
               250.0%
               200.0%
               150.0%
               100.0%
                50.0%
    



                             May 1997     June 1997    July 1997     Aug. 1997     Sept. 1997   Oct. 1997   Nov. 1997   Dec. 1997
                             -------      ---------    ---------     ---------     ----------   ---------   ---------   ---------
                                                                                                    
Laidlaw Environmental
Peer Group                                                               
S&P 500







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BROAD WALL STREET COVERAGE
- ------------------------------------------------------------------------
   



                                      Laidlaw
                                   Environmental           Safety-Kleen
                                   --------------          ------------
                                                       
A.G. Edwards                                                   X
Bankers Trust                                                  X
Barrington Research                                            X
Burnham Securities                      X
CIBC Oppenheimer                        X                      X
CS First Boston                                                X
DLJ                                     X
Goldman Sachs                           X
Merrill Lynch                           X                      X
RBC Dominion Securities                 X
Raymond James                           X
Smith Barney                            X                      X
William Blair                                                  X



    



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FULLY DILUTED OWNERSHIP
- ----------------------------------------------------------------------- 

- - Safety-Kleen shareholders will own 40% of the combined company on a
  fully diluted basis

- - Combined company will benefit from Laidlaw Inc.'s continued support


                                       Fully Diluted
                                        Ownership
                                       -------------

Laidlaw Inc.                               47%

LLE Public Holders                         13

Safety-Kleen Holders                       40
                                         ------

  Total                                   100%
                                         ======


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INCREASED FLOAT PROVIDES LIQUIDITY
- -------------------------------------------------------------------------- 
($ in millions)



                                                                Avg. Daily
                                            Dollar Float       Dollar Volume
                                            ------------       -------------

                                                         
Laidlaw Environmental                       $293(1)            $0.50(1)

New Shares Issued to
  Safety-Kleen Shareholders                 $876(2)            $2.25(3)
                                          ------               -----
  Consolidated                            $1,119               $2.75
                                          ======               =====




   
- ---------------------
(1) Based on LLE stock price of $4.875 per share.
(2) Based on $15.00 in LLE stock.
(3) 50% of Safety-Kleen normal trading volume to reflect 50% cash/50% stock
    consideration mix.
    
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           Laidlaw Environmental Services            Safety-Kleen
                    [Logo]                              [Logo]
    


                           A POWERFUL COMBINATION