Vol. XXVIII, pp. ix-xiv 



PROCEEDINGS 



OF THE 



BIOLOGICAL SOCIETY OF WASHINGTON 



PROCEEDINGS. 



The Society meets in the Assembly Hall of the Cosmos Club 

 on alternate Saturdays at 8 p. m. 



January 9, 1915— 533d Meeting.* 



President Paul Bartsch in the chair and 40 persons present. 



Dr. L. 0. Howard made remarks on meetings of the American 

 Association for the Advancement of Science lately held in 

 Philadelphia. 



Dr. H. A. Pilsbry discussed certain aspects of Hawaiian land 

 shell problems. 



The regular program consisted of three communications, as 

 follows : 



"An Unknown Fossil " ; William Palmer. 



"An Albino Diamond-back Terrapin " ; W. P. Hay. 



" Notes on the Physiology of Bats " ; M. W. Lyon, Jr. 



January 23, 1915— 534th Meeting.f 



President Bartsch in the chair and 75 persons present. 



Dr. Johan Hjort, Director of Fisheries of Norway, discussed 

 Norwegian herring catches. 



Lantern slides on biological subjects were exhibited by W. W. 

 Cooke, Hugh M. Smith, William Palmer, and Paul Bartsch. 



The regular program consisted of a single paper, as follows: 



" Developing Instincts of a Young Squirrel " ; Agnes Chase. 



♦Abstracts of papers in Journ. Washington Acad. Sci.. Vol. 5, pp. 290-291, April 19, 

 1915; and in Science, N. S.. Vol. 41, p. 477, March 26, 1915. 



t Abstracts in Journ. Washington Acad. Sci., Vol. .'i. pp. 290-291, April 19, 1915; and 

 in Science, N. S„ Vol. 41, p. 478, March 26, 1915. 



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