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Name of Issuer:
STERIS Corp.
Type or Class of Security:
Common
CUSIP Number:
859152100
1. Name of Reporting Person
S.S. or I.R.S. Identification No. of Above Person
Friess Associates, Inc. 51-0253305
2. Check the Appropriate Box if a Member of a Group
(a)
(b)
3. SEC Use Only
4. Citizenship or Place of Organization
115 E. Snow King
Jackson, WY 83001
5. Sole Voting Power
2,003,000
6. Shared Voting Power
n/a
7. Sole Dispositive Power
2,003,000
8. Shared Dispositive Power
n/a
9. Aggregate Amount Benefically Owned by Each Reporting Person
2,003,000
10. Check Box if the Aggregate Amount in Row (9) Excludes Certain Shares
n/a
11. Percent of Class Represented by amount in #9
5.9
12. Type of Reporting Person
I.A.
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 purposes 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.
January 29, 1998
Foster S. Friess
President