106 EIGHTEENTH REPORT. 



HIBLIOGKAI'IIY 



OF 



rEUKtnicAL LiTEUATLin: AXi) rrr.LicATioxs of learned societies of 



INTEREST TO ZOOLOGISTS IX THE UNIVERSITY OF 

 MICHIGAN LIBRARY. 



CO:MriLED BY ROBERT W. HEGNER.* 



This list has been prepared for the following purposes: 

 (1) To collect and arrange titles of all periodical literature in 

 the library of interest to zoologists in such a manner that it will 

 be possible to determine quickly whether we have or do not have 

 any particular volume or number. 



(2 1 To provide an easy method of finding reports by publish- 

 ing the library call numbers. 



(3) To make it possible to determine the needs of the library 

 with regard to periodicals of this character. (Auj'^ suggestions 

 from those interested will be appreciated.) 



(4) To aid scientists throughout the State of Michigan by pub- 

 lishing a list which will inform them as to the available zoological 

 literature in the library. 



Periodical literature and the publications of the learned socie- 

 ties are classified in the University of Michigan Library according 

 to Dewev's Decimal Svstem. 



The publications of learned societies are in the upper reading 

 room of the general library'. They are placed on the shelves accord- 

 ing to (1) the country or language (American, English, German, 

 Frencli, Italian, etc.), (2) the city in which thej^ Avere published, 

 and (3) the initial of the first word of the official title. 



Other i)eriodical literature will be found in the stacks of the 

 general library or in one of the branch libraries on the campus as 

 indicated in the ap])ended summary of classification. The official 

 publications of societies are fjlaced either under the name of the 

 society, e. g., tlie Biological Bulletin under the name Marine Biolog- 

 ical Laboratory, or under the title of the publications, e. g., the of- 

 ficial organ of tlie Audubon Societies under Bird Lore. Printed di- 

 rectories giving 1ho ])ositi()n of periodicals according to call mim- 



*The writer is indebted to Miss Grace Powers of the Zoolocty Department and to several 

 members of the library staff for assistance in preparing this report. 



