Re: Registration Statement NO. 33-78472, 33-57238, 33-93070, 333-15921 and 333-07639 With respect to the subject registration statement, we acknowledge our awareness to the use therein of our report dated March 25, 1999 related to our review of interim financial information. Pursuant to Rule 436(c) under the Securities Act of 1933, such report is not considered part of a registration statement prepared or certified by an accountant or a report prepared or certified by an accountant within the meaning of sections 7 and 11 of the act. S/S KPMG LLP San Francisco, California March 31,1999