PROCEEDINGS 
Fourth Series 
VOLUME I 
Expedition of the California Academy of Sciences to the Galapagos 
Islands, 1905-1906. 
Pages 1-6. Preliminary Descriptions of Four New Races of Gigantic 
Land Tortoises from the Galapagos Islands. By John Van 
Menburshiy (Lesmed: December 20) TIC) ious 2 a4 eis we he eee $B .25 
VOLUME II 
Expedition of the California Academy of Sciences to the Galapagos 
Islands, 1905-1906. 
(In progress.) 
VOLUME III 
Pages 1-40. A Further Stratigraphic ‘Study in the Mount Diablo 
Range of California. By Frank M. Anderson, (J/sswed October 
Ha Ae 8 IO yO We ey A LS NG MR VAR TA ABN hae 230 
The Academy cannot supply any of its publications issued before the 
year 1907, its entire reserve stock having been destroyed in the conflagra- 
tion of April 18-20, 1906. 
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