Report of the President 65 



brates and their bionomic associates, with a view to the com- 

 pletion of the Tide Pool Group and the construction of addi- 

 tional models for the Darwin Hall. Mr. George Abbot James, 

 on whose property the tide pool is situated, continued to extend 

 his many courtesies to the members of the expedition. Later 

 Mr. Miner devoted a month to studies of the Adirondack 

 Myriapoda, at stations among the lakes of the Fulton Chain 

 and on the neighboring mountains, securing about 2,000 speci- 

 mens. Dr. Lutz, accompanied and assisted by Dr. Rehn of 

 the Academy of Natural Sciences of Philadelphia, made an 

 extended journey in southern Arizona and later proceeded 

 alone to California and Utah ; his expedition was supported by 

 Mr. B. Preston Clark, who generously continued his assistance 

 of the entomological work of the department. The fruits of 

 this journey are about 20,000 specimens of unusual value for 

 the study of the larger problems of insect distribution and 

 evolution. In an expedition to the southeastern United States, 

 which is also an important area for investigation, Mr. Watson 

 obtained about 6,000 insects ; this work was prosecuted through 

 the aid of Mr. Gaylord C. Hall, another of the department's 

 benefactors. 



Curator Crampton's researches on Polynesian gastropods, 



under the auspices of the Carnegie Institution of Washington, 



have been advanced, and the first extensive quarto 



Research and vo i ume , which deals with the species of Tahiti, 



Publications r ' 



has finally appeared. Curator Gratacap has de- 

 voted much time to the identification and study of the exten- 

 sive molluscan collections from Porto Rico. Mr. Fisk's work 

 on the West Indian echinoderms was unfortunately terminated 

 by his illness and subsequent withdrawal from the staff. Pro- 

 fessor Treadwell has finished the study of numerous small col- 

 lections of annulates and has taken up the Porto Rican series, 

 while Professor Raymond C. Osburn has advanced his inves- 

 tigations of the Bryozoa. Dr. Willard G. Van Name, the new 

 member of the staff, has worked over the West Indian 

 ascidians and has nearly completed a valuable paper on that 

 group. Publications in the field of entomology include Dr. 

 Lutz's admirable paper on "The Geographic Distribution of 



