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CALIFORNIA ACADEMY OF SCIENCES [Proc. 4th Ser. 



fossil crustaceans; Mr. Waldo Schmitt, U. S. National Museum, living crus- 

 taceans; Dr. T. Wayland Vaughan, U. S. Geological Survey, fossil mollusks 

 from Mexico. G. Dallas Hanna, Curator. 



Library 



Accessions to the library during 1922 number 903 complete volumes besides 

 pamphlets and single numbers of serials. Of these complete volumes 189 

 were secured by purchase, 301 through exchange for the Academy publications, 

 and 423 by gift. These figures are a little smaller than for the preceding 

 year. A little less money was available for the purchase of books and there 

 was no such large single gift as in 1921. The largest single donation re- 

 ceived during the year was the J. N. Webster collection of 369 volumes re- 

 ceived through the generosity of Mr. George Sturtevant. 



Mrs. Helen Van Duzee has done the entire library work throughout the 

 year besides helping with the care of the Academy publications and in other 

 lines of effort. The portion of her time left for library work, after the care 

 of current accessions, was insufficient to make any large advance toward com- 

 pleting the accessioning and cataloging of the miscellaneous material stored 

 in the lower stack room. Publications on agriculture were, however, arranged 

 and catalogued and a good start made on the subjects of education and en- 

 gineering. A total of 491 volumes were accessioned during the year, which 

 represents the growth of the library, excepting the Webster collection, which 

 was received too late in December to admit of accessioning before the end of 

 the month. All other additions to the library were fully catalogued and 

 much was done to add to the efficiency of the library equipment, especially in 

 the way of rendering more accessible the resources of the library. 



Broadly speaking, the library work has been kept thoroughly up to date 

 although, with the limited time available, but little could be done toward 

 working up the miscellaneous material stored in the lower stack room. The 

 use of the books has been satisfactory, showing an appreciation of the im- 

 proved accessibility of the resources of this department of the Academy's 

 activities. Edward P. Van Duzee, Assistant Librarian. 



Department of Mammalocy 



As heretofore this department has been conducted conjointly with the De- 

 partment of Ornithology, and field work was carried on as opportunity offered 

 in that connection. The matter of greatest interest resulting from the field 

 work in this department in the past year was the taking of a Mazama Red- 

 backed Mouse (Evotomys mazama) at Quincy, Plumas County, California, 

 which appears to be the first specimen of this genus actually recorded from 

 the interior of this state, south of Mt. Shasta. Others may have been taken, 

 but, apparently, not recorded in any publication. 



The number of specimens of various classes in this department, as entered 

 upon the accession register, is 4,387, including the following additions for the 

 year: On hand, but not before recorded: 26. By exploration: 283. By Gift: 

 Mr. Otto Anderson, 4; Mrs. Vilinda Blakely, 1; California Fish and Game 



