SECURITIES AND EXCHANGE COMMISSION


                             Washington, D.C. 20549




                                    FORM 8-K

                                 CURRENT REPORT


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

         Date of Report (Date of earliest event reported) July 29, 1999

                        National Service Industries, Inc.
             (Exact name of registrant as specified in its charter)


         Delaware                      1-3208                   58-0364900
 (State or other jurisdiction       (Commission               (IRS Employer
    of incorporation)                File Number)            Identification No.)


 1420 Peachtree St., N.E., Atlanta, Georgia                   30309-3002
(Address of principal executive offices)                       (Zip Code)


Registrant's telephone number, including area code  (404) 853-1000








Item 2.  Acquisition or Disposition of Assets

         On July 29, 1999,  National  Service  Industries,  Inc.  ("Parent"),  a
Delaware corporation,  became the owner of all of the capital stock of Holophane
Corporation, a Delaware corporation (the "Company"), pursuant to the merger (the
"Merger") of NSI Enterprises,  Inc.  ("Purchaser"),  a Delaware  corporation and
wholly-owned subsidiary of Parent, with and into the Company with the Company as
the surviving  corporation.  At the effective time of the Merger (the "Effective
Time"),  the Company  became a wholly-owned  subsidiary of Parent.  Prior to the
Merger, the Company was a vertically integrated,  international manufacturer and
marketer of highly engineered  lighting fixtures and systems for a wide range of
industrial,  commercial and outdoor applications.  Parent presently intends that
the Company will  continue its  business in  substantially  the same manner as a
part of Parent's lighting equipment segment.

         The Merger was consummated  pursuant to an Agreement and Plan of Merger
(the "Merger Agreement"), dated as of June 20, 1999, among Parent, Purchaser and
the  Company.  Prior to the  Merger,  Parent  consummated  a tender  offer  (the
"Offer") to purchase all outstanding  shares of common stock, par value $.01 per
share (the  "Shares") of the Company,  at a purchase  price of $38.50 per Share,
net to the  seller in cash,  less any  required  withholding  taxes and  without
interest  thereon  (the  "Offer  Price"),  upon the  terms  and  subject  to the
conditions  set forth in the Offer to Purchase,  dated June 25, 1999 (the "Offer
to Purchase") and in the related Letter of Transmittal  (which together with the
Offer to  Purchase  constituted  the Offer).  On July 23,  1999,  the  Purchaser
accepted  for  payment,  pursuant  to the Offer,  10,323,872  Shares.  As of the
Effective Time, each issued and outstanding Share (other than Shares held by the
Company as treasury stock or owned by the Company,  Purchaser,  Parent or any of
such parties' direct or indirect subsidiaries,  which Shares were cancelled with
no consideration  delivered in exchange therefor, and other than Shares, if any,
held by any  stockholders  who perfect their appraisal rights under the Delaware
General  Corporation Law) was, by virtue of the Merger and without any action by
the holder thereof, converted into the right to receive the Offer Price, payable
to  the  holder  thereof,   upon  the  surrender  of  the  certificate  formerly
representing such Share. Total payments to former stockholders of the Company in
the Offer and the Merger are expected to be approximately  $439 million in cash.
The sources of funds used in the  acquisition of the Company by Parent  included
cash on hand and sales of commercial paper.

         The  foregoing  description  of the  Offer,  the  Merger and the Merger
Agreement  does not purport to be complete  and is  qualified in its entirety by
reference  to the Offer to  Purchase  filed by Parent and the  Purchaser,  as an
exhibit to their Tender Offer Statement on Schedule 14D-1, as amended, a copy of
which is filed as Exhibit 1 hereto, and the Merger Agreement, a copy of which is
filed as Exhibit 2 hereto. A copy of the press release announcing the completion
of the  Offer  is  filed  as  Exhibit  3  hereto.  A copy of the  press  release
announcing the consummation of the Merger is attached hereto as Exhibit 4 and is
incorporated herein by reference.

Item 7.  Financial Statements, Pro Forma Financial Information and Exhibits

         (a)      Financial Statements of Business Acquired

                  To be filed by Amendment to this Current Report on Form 8-K no
later than October 12, 1999.

         (b)      Pro Forma Financial Information

                  To be filed by Amendment to this Current Report on Form 8-K no
later than October 12, 1999.

         (c)      Exhibits

                  1. Offer to  Purchase,  dated June 25, 1999  (incorporated  by
reference to Exhibit  (a)(1) to the Tender Offer  Statement on Schedule 14D-1 of
Parent and the Purchaser, dated June 25, 1999, as amended).

                  2.  Agreement  and Plan of Merger,  dated as of June 20, 1999,
among National Service  Industries,  Inc., NSI  Enterprises,  Inc. and Holophane
Corporation  (incorporated  by reference  to Exhibit  (c)(1) to the Tender Offer
Statement on Schedule 14D-1 of Parent and the Purchaser, dated June 25, 1999, as
amended).

                  3.  Press  Release,  dated  July  26,  1999  (incorporated  by
reference to Exhibit  (a)(10) to the Tender Offer Statement on Schedule 14D-1 of
Parent and the Purchaser, dated June 25, 1999, as amended).

                  4.  Press  Release,  dated  July  29,  1999  (incorporated  by
reference to Exhibit  (a)(11) to the Tender Offer Statement on Schedule 14D-1 of
Parent and the Purchaser, dated June 25, 1999, as amended).






                                    SIGNATURE


         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: August 3, 1999                       By: /s/ Brock A. Hattox
                                                   Brock A. Hattox
                                                   Executive Vice President and
                                                   Chief Financial Officer