PROCEEDINGS 
Fourth iS eries 
VOLUME I 
Expedition of the California Academy of Sciences to the 
Galapagos Islands, 1905-1906. 
Pages 1-6. I. Preliminary Description of Four New Races of 
Gigantic Land Tortoises from the Galapagos Islands. By John 
Van Denburgh. (Jsswed December 20, 1907)... 6 occ cececcuccess 
Pages 7-288. II.- A Botanical Survey of the Galapagos Islands. 
By Alban Stewart. Plates 1-xix. (Jssued January 20,1911)... 
Pages 289-322. III. The Butterflies and Hawk-Moths of the 
Galapagos Islands. By Francis X. Williams. Plates xx, xx1. 
Gissued October ATOLL) 3 cates Pia, CAST een 
Pages 323-374, IV. The Snakes of the Galapagos Islands. By 
John Van Denburgh. Plates xxu-xxx. (Jssued January 17, 1912) 
Pages 375-404. V. Notes on the Botany of Cocos Island. By 
Alban Stewart. Plates xxxI-xxxiv. (Jssued January 19, 1972) 
Pages 405-430. VI. The Geckos of the Galapagos Archipelago. 
By John Van Denburgh. (Jssued April 16, 1912) .......0000. 
Pages 431-446. VII. Notes on the Lichens of the Galapagos 
Islands. By Alban Stewart. (lssuwed December 17, 1912)...... 
VOLUME II, Part I 
Expedition of the» California Academy of Sciences to the 
Galapagos Islands, 1905-1906. 
Pages 1-132. VIII. The Birds of the Galapagos Islands, with 
Observations on the Birds of Cocos and Clipperton Islands 
(Columbiformes to Pelecaniformes). By Edward Winslow 
Gifford. Platest-vi1. (Jssued August 11, 1913)........2.000. 
Pages 133-202. IX. The Galapagoan Lizards of the Genus 
Tropidurus; with Notes on the Iguanas of the Genera 
Conolophus and Amblyrhyncus. By John Van Denburgh and 
Joseph R. Slevin. Plates vii-x1. (Issued September 19, 1913). 
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VOLUME III - 
Pages 1-40. A Further Stratigraphic Study in the Mount Diablo 
Range of California. By Frank M.Anderson. Plate 1. (Jssued 
OGb Ober ST, LIOEN EBA BE pf ENTE OES ET ET ee POD 
Pages 41-48. Description of a New Species of Sea Snake from the 
Philippine Islands, with a Note on the Palatine Teeth in the 
Proteroglypha, By John Van Denburgh and Joseph C. Thomp- 
sons \(Lssved December 3Lo TIS Ea Ob ee non 
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