Vol. VI] EVBRMANN— DIRECTOR'S REPORT FOR 1916 241 



America in completeness and value of material is an ambition 

 which should receive the hearty support of the Academy. 



Within the year the department has contributed four papers 

 setting forth results of studies by the curator and assistant 

 curator of the collections of the Academy, two of which have 

 been published. The other two will be printed soon. Other 

 scientific papers are in course of preparation. 



Department of Invertebrate Paleontology. — Mr. F. M. An- 

 derson, the curator of this department, was on leave during the 

 entire year, engaged on special work for certain oil companies 

 and the Southern Pacific Railroad. The assistant curator, Dr. 

 Roy E. Dickerson, has shown his accustomed energy and in- 

 dustry in looking after the interests of his department. A large 

 amount was accomplished in preparing, sorting, identifying, 

 and classifying the material in various collections, and putting 

 the general collections of the department in order. 



Although the budget allotment to the department was small 

 several field expeditions were successfully conducted, — one to 

 the Simi hills in Ventura and Los Angeles counties, one to the 

 Marysville Buttes, one to the vicinity of Petaluma and Free- 

 stone, and one in the area on the southern border of the Mohave 

 Desert, where certain studies in historical geology were made 

 in co-operation with Dr. L. F. Noble of the U. S. Geological 

 Survey. 



The assistant curator has been active and productive in 

 original research, and has within the year contributed a number 

 of papers to paleontological literature. 



Department of Invertebrate Zoology. — In this department, 

 which is as yet only in the formative stage, the work of the 

 year has consisted almost exclusively in the making of collec- 

 tions for the department. The curator spent a portion of the 

 month of June at Monterey Bay and vicinity collecting desir- 

 able material. In the same month some collecting was done 

 in the vicinity of Point Conception. 



In co-operation with the Department of Biology of the Uni- 

 versity of Southern California, two weeks were devoted to 

 dredging about Santa Catalina Island. 



The collections of the department have also been enriched 

 by a valuable series of west coast Gephyrean worms and a mis- 



