xxiv The Molluscan Family Planorbidae 



of his work, he collaborated with various specialists but had closest 

 relations with the late W. K. Moorehead whose reports on studies 

 conducted for the University of Illinois were edited by Mr. Baker. 



To supplement this analysis it should be recorded that in the 

 period from 1900 to 1915. Mr. Baker edited the Bulletins and other 

 publications of the Chicago Academy of Sciences. From 1913 to 1915 

 he was assistant editor of Home and School Reference Work, pub- 

 lished in Chicago in seven volumes, to which he personally con- 

 tributed 125 articles on birds. Earlier (1900) he prepared a one-page 

 article on Mollusca for the United Editors Encyclopedia published in 

 New York. In 1926, in addition to serving as associate editor of 

 Naturalist's Guide to the Americas, he prepared the references 

 therein to molluscan distribution. From 1921 to 1926, Mr. Baker 

 wrote numerous reviews of current works on Mollusca for Ecology. 



In his total contributions, exceeding 350 original articles, more 

 than 250 deal entirely or largely with his chosen field of research, 

 the Mollusca. While many of these are but short, minor notes, some 

 quantitative evaluation of Air. Baker's productivity may be reflected 

 in the fact that more than a dozen of these works enumerated are 

 of such size as to merit classification as separate books. 



Throughout his active career Mr. Baker kept a carefully compiled 

 record of his publications, a copy of which was in his desk at the time 

 of his death. This list, which he prepared, is here published in full 

 with but few slight editorial changes and corrections. 



Harley Jones Van Cleave 



