Underwriters .................................................  Number of Shares
________________________________________________________________________________
Robertson Stephens, Inc. and Robertson Stephens
  International, Ltd........................................     2,100,000
Chase Securities Inc. and Chase Manhattan International
  Limited...................................................     2,100,000
Donaldson, Lufkin & Jenrette Securities Corporation.........     2,100,000
First Union Securities, Inc.................................       700,000
E*OFFERING Corp.............................................       100,000
Fidelity Capital Markets, a division of National Financial
  Services Corporation......................................       100,000
Needham & Company, Inc......................................       100,000
Quick & Reilly, Inc.........................................       100,000
SunTrust Equitable Securities Corporation...................       100,000
________________________________________________________________________________
Total.......................................................     7,500,000