P R C E E DING S 



IC-' 



<> K Til K 



CALIFORiNIA ACADEMY 





o p 



SCIENCES. 



VOLUME IV. 



PART IV. 



ISTl- 





,><^^^t/ii 



SAN FliANCISCO: 

 BACON & COMPANY, ROOK AND JOB PRINTERS 



1872. 



