BULLETIN 



OF THE 



Southern Cafifornia Academy of Sciences 



COMMITTEE ON PUBLICATION: 



A. Davidson, C. M., M. D., Chairman 

 Melville Dozier T. B Comstock, Ph. D. 



A Monograph on Pecten Aequisulcatus, Cpr. 



MRS. M. BURTON WILLIAMSON. 



PUBLISHED FOR THE ASSOCIATION BY 



B. R. EAUMGARDT & CO. 



231 West First St., Los Angeles, Cal. 



Yearly Subscription , $1.00 



Single Copies, 25 cts. 



MAILED MAY 10, 1902 



J 



