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13G Page 1 of 4 Pages
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SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, DC 20549
SCHEDULE 13G
(Rule 13d-102)
INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT TO RULES 13d-1(b),(c),
AND(d)AND AMENDMENTS THERETO FILED PURSUANT TO RULE 13d-2(b)
(Amendment No. 4)(1)
Unifirst Corporation
(Name of Issuer)
Common Stock $0.10 Par Value Per Share
(Title of class of securities)
904708104
(CUSIP number)
April 30, 1999
(Date of Event Which Requires Filing of this Statement)
Check the appropriate box to designate the rule pursuant to which this Schedule
is filed:
[ ] Rule 13d-1(b)
[ ] Rule 13d-(c)
[ ] Rule 13d-1(d)
______________________________________________________________________________
(1) The remainder of this cover page shall be filled
out for a reporting person's initial filing on this
form with respect to the subject class of securities,
and for any subsequent amendment containing information
which would alter the disclosures provided in a prior
cover page.
The information required in the remainder of this cover
page shall not be deemed to be "filed" for the purpose
of Section 18 of the Securities Exchange Act of 1934 or
otherwise subject to the liabilities of that section of
the Act but shall be subject to all other provisions of
the Act. (however, see the Notes.).
CUSIP No. 904708104 13G Page 2 of 4 Pages
1. NAME OF REPORTING PERSONS S.S. OR I.R.S IDENTIFICATION
NO.OF ABOVE PERSONS
Societe Generale Asset Management Corp. 13-3557071
2. CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
(a) [ ]
(b) [ ]
3. SEC USE ONLY
4. CITIZENSHIP OR PLACE OF ORGANIZATION
Delaware
NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING
PERSON WITH
5. SOLE VOTING POWER
0
6. SHARED VOTING POWER
791,000 Shared with its investment advisory client (s)
7. SOLE DISPOSITIVE POWER
0
8. SHARED DISPOSITIVE POWER
791,000 Shared with its investment advisory client (s)
9. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
791,000
10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9)EXCLUDES
CERTAIN SHARES* [ ]
11. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9
10.02%
12. TYPE OF REPORTING PERSON*
IA
13G Page 3 of 4 Pages
Item 1
(a) Name of Issuer:
Unifirst Corporation (the "Issuer").
(b) Address of Issuer's Principal Executive Offices:
68 Jonspin Road, Wilmington, Massachusetts 01887
Item 2
(a) Names of Persons Filing:
Societe Generale Asset Management Corp.,
a Delaware corporation (the "Adviser").
(b) Address of Principal Business Office:
The principal business office of the Adviser is located at
1221 Avenue of the Americas, New York, NY 10020.
(c) Citizenship:
The Adviser is a Delaware corporation.
(d) Title of Class of Securities:
Common Stock $0.10 Par Value Per Share (the "Shares").
(e) CUSIP Number:
904708104
Item 3
If This Statement is Filed Pursuant to Rule 13d-1 (b), or 13d-2 (b) or (c),
Check Whether the Person Filing is a:
(a)[ ] Broker or dealer registered under Section 15 of the Exchange Act.
(b)[ ] Bank as defined in Section 3(a)(6)of the Exchange Act.
(c)[ ] Insurance company as defined in Section 3(a)(19)of the Exchange Act.
(d)[ ] Investment company registered under Section 8 of the Investment Company
Act.
(e)[X] An investment adviser in accordance with Rule 13d-1(b)(1)(ii)(E);
(f)[ ] An employee benefit plan or endowment fund in accordance with Rule 13d-1
(b)(1)(ii)(F);
(g)[ ] A parent holding company or control person in accordance with Rule 13d-1
(b)(1)(ii)(G);
(h)[ ] A saving association as defined in Section 3(b)of the Federal Deposit
Insurance Act;
(i)[ ] A church plan that is excluded from the definition of an investment
company under Section 3(c)(14)of the Investment Company Act;
(j)[ ] Group, in accordance with Rule 13d-1(b)(1)(ii)(J).
If this statement is filed pursuant to Rule 13d-1(c), check this box. [ ]
13G Page 4 of 4 Pages
Item 4. Ownership.
If more than five percent of the class is owned, indicate
(a) Amount Beneficially Owned: 791,000 Shares
(b) Percentage of class: 10.02% of the outstanding shares
(c) Number of Shares As to Which Such Persons Have:
(i) sole power to vote or direct the vote: None
(ii) shared power to vote or direct the vote: 791,000
(iii) sole power to dispose or to direct the disposition of: None
(iv) shared power to dispose or to direct the disposition of: 791,000
(d) Share which there is a right to acquire: None.
Item 5. Ownership of Five Percent or Less of a Class
Not Applicable.
Item 6. Ownership of More Than Five Percent on Behalf of Another Person:
Not Applicable.
Item 7. Identification and Classification of the Subsidiary Which Acquired
the Security Being Reported On By the Parent Holding Company:
Not Applicable.
Item 8. Identification and Classification of Members of the Group:
Not Applicable.
Item 9. Notice of Dissolution of Group:
Not Applicable.
Item 10. Certification.
By signing below, I certify that, to the best of
my knowledge and belief, the securities referred
to above were acquired in the ordinary course of
business and were not acquired for the purpose of
and do not have the effect of changing or
influencing the control of the Issuer of such
securities and were not acquired in connection
with or as a participant in any transaction having
such purpose or effect.
SIGNATURE.
After reasonable inquiry and to the best of my
knowledge and belief, I certify that the
information set forth in this statement is true,
complete and correct.
Dated: May 4, 1999
SOCIETE GENERALE ASSET MANAGEMENT CORP.
By: /s/ Jean-Marie Eveillard
Title: Jean-Marie Eveillard, President