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HALE AND DORR LLP
Counsellors at Law
60 State Street
Boston, Massachusetts 02109
(617) 526-6000 FAX (617) 526-5000
September 30, 1998
VIA EDGAR
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Securities and Exchange Commission
450 Fifth Street, N.W.
Judiciary Plaza
Washington, D.C. 20549
Re: MKS Instruments, Inc.
Registration on Form 8-A
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Ladies and Gentlemen:
MKS Instruments, Inc. (the "Company") filed with the Securities and
Exchange Commission (the "Commission") a registration statement on Form 8-A
on January 15, 1998 (the "8-A Registration Statement"). Mr. John Jones of the
Commission staff, in a telephone conversation with me on September 25, 1998,
asked that the Company withdraw the 8-A Registration Statement. Therefore, on
behalf of the Company, I am hereby requesting that the 8-A Registration
Statement be withdrawn.
Please feel free to contact me with any questions or comments you may have.
Sincerely,
/s/ Richard N. Kimball
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Richard N. Kimball
RNK/cf
cc: Mr. John Jones
Mr. John W. Bertucci
Mr. Ronald Weigner
Richard Chute, Esq.
Mark G. Borden, Esq.