6 CALIFORNIA ACADEMY OF SCIENCES [Proc. 4th Ser. 



cations of the Academy. They have also completed their 

 studies of the collections from Arizona, and the results of 

 these, too, have been published by the Academy during- the 

 year. 



In this, as in the various other departments, the routine 

 work of caring for the collection and of arranging the speci- 

 mens has received attention, and the recording of the collec- 

 tion in the catalogue of the department has been brought up 

 to date. 



DEPARTMENT OF INVERTEBRATE 

 PALEONTOLOGY 



In the Department of Invertebrate Paleontology, Mr. F. 

 M. Anderson, the Curator, and his Assistant, Mr. Bruce 

 Martin, have devoted such time in the field as means would 

 permit to regional studies of minor provinces of the Pacific 

 Coast, with special reference to the Tertiary formations. The 

 field work was extended by Mr. Martin from California into 

 Oregon and Washington, and a large amount of valuable 

 material was collected. Some 21,500 specimens repre- 

 senting about 700 species have been added to the Academy's 

 collection. 



The indoor work of the department has related to the 

 preparation of material for publication and to the identifica- 

 tion and arrangement of the specimens in the collection. 



DEPARTMENT OF MAMMALOGY 



In the Department of Mammalogy, under the direction of 

 the Curator, Mr. John Rowley, assisted by Mr. A. E. Bolton, 

 the work of collecting and preparing material for exhibition 

 groups has been continued. There are now mounted and 

 practically ready for installation nine groups, as follows : 



Four seasonal groups of Blacktail Deer 

 One group each of: 



California Mule Deer 



San Joaquin Elk 



Leopard Seal 



Steller's Sea Lion 



Mountain Lion 



