Coleoptera from the Pribilof Islands, Alaska, by Edwin C. Van 



Dyke, published November 2, 1921 156 



A new Species of the Dipterous family Dolichopodidse from the 

 Pribilof Islands, Alaska, by M. C. Van Duzee, published No- 

 vember 2, 1921 16? 



Diptera from the Pribilof Islands, Alaska, by F. R. Cole, pub- 

 lished November 2, 1921 169 



Dipterous Insects of the family Anthomyiidas from the Pribilof 

 Islands, Alaska, by J. R. Malloch, published November 2, 

 1921 178 



Dipterous Insects of the family Tipulidse from the Pribilof Islands, 



Alaska, by C. P. Alexander, published 'November 2, 1921 183 



Hymenopterous Insects of the family Bremidse from the Pribilof 

 Islands, Alaska, by Theodore H. Frison, published November 

 2, 1921 185 



New Saw-flies from the Pribilof Islands, Alaska, by Alexander D. 



Macgillivray, published November 2, 1921 188 



Orthoptera, Neuroptera, Hemiptera and Lepidoptera from the 

 Pribilof Islands, Alaska, by Edward P. Van Duzee, published 

 November 2, 1921 193 



An annotated list of the Diptera (Flies) of Oregon, by F. R. Cole 



and A. L. Lovett, published December 14, 1921 197 



Revision of the Pipiza Group of the family Syrphidae (Flower- 

 flies) from North of Mexico, by C. Howard Curran, published 

 December 31, 1921 345 



Preliminary diagnoses of more new Species of Reptiles from 

 Islands in the Gulf of California, Mexico, by John Van Den- 

 burgh and Joseph R. Slevin, published December 17, 1921 395 



Fossil Chitons of Western North America, by S. Stillman Berry, 



published May 16, 1922 399 



Tertiary and Quaternary History of the Petaluma, Point Reyes 

 and Santa Rosa Quadrangles, by Roy E. Dickerson, pub- 

 lished July 10, 1922 527 



Report of the President of the Academy for the Year 1921, by 



C. E. Grunsky, published August 21, 1922 603 



Report of the Director of the Museum for the Year 1921, by 



Barton Warren Evermann, published August 21, 1922 611 



Report of the President of the Academy for the Year 1922, by 



C. E. Grunsky, published August 22, 1923 655 



Report of the Director of the Museum for the Year 1922, by 



Barton Warren Evermann, published August 22, 1923 663 



Report of the Treasurer for the Year 1922, by M. Hall McAllister, 



published August 22, 1923 695 



Index „ 701 



