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



In addition to this all single books and many sets of serials not before 

 attended to have been classified, catalogued and the cards filed, so our 

 catalogue is now reasonably complete except for government and miscel- 

 laneous institutional reports and publications. Label holders have been 

 attached to the shelves constructed last year for current serials and the 

 300 and over serials shelved there have been arranged alphabetically and 

 plainly labeled so they are now readily accessible to readers. The work 

 in the library department has been accomplished through the efficient 

 efforts of two assistants who have devoted a portion of their time to this 

 work. Miss Mary E. McLellan takes general charge of the library reading 

 room, enters all serials and exchanges as received on the record cards, 

 keeps them in proper order on the shelves, and makes all entries on the 

 accessions book, while Mrs. Helen Van Duzee has collated, classified and 

 arranged the great mass of miscellaneous documents, reports and serials 

 in the lower library room, including most of the geological surveys and 

 reports and has attended to the classifying and cataloguing done during 

 the year. 



The accessions to the library during the past year number 393 complete 

 volumes and a large number of miscellaneous pamphlets, excerpts and odd 

 numbers of serials and society transactions, received by purchase, exchange 

 or as gifts. 



As stated last year the most important work before this department is 

 the completion of the work of accessioning the accumulation of material 

 now on hand, for until that is done it will be impossible to make out an 

 intelligent report or to keep track of books currently received. Next in 

 importance is the completion of the card catalogue so it shall cover the 

 departmental libraries and the miscellaneous books in the lower stack 

 room. The addition of about 90 lineal feet of wall shelving at the south- 

 west corner of the lower library room' would much facilitate the handling 

 of the books. One suggestion made last year should be again repeated. 

 That is the appropriation of a suitable allowance for the purchase of books 

 for the general and departmental libraries and for the binding of the 

 complete volumes of serials and society publications. A technical library 

 such as this must maintain a constant, even if small, growth. 



Department of Invertebrate Zoology 

 By Walter K. Fisher, Curator 



The work of the department for the year comprised exploration in two 

 widely separated localities, the Lesser Antilles and Puget Sound. 



In December, 1917, the curator was invited to accompany an expedition 

 to Antigua and Barbados. British West Indies, organized under the auspices 

 of the Graduate School of the University of Iowa and largely manned by 

 members of the Department of Zoology of that institution. It was decided 

 that the curator would represent the California Academy of Sciences and 

 the Department of Zoology of Stanford University, one-half of the ma- 

 terial collected to go to each institution. In addition to this, duplicate 



