Proceedings. xi 



March 8, 1919—593(1 Meeting J 



Vice-President Hollister presided; 60 persons present. 



Informal communications: Paul Bartsch, Note upon annual 

 visits of a purple finch; L. 0. Howard, Note upon the spread 

 of the European corn borer in Massachusetts and New York; 

 N. Hollister, Note upon ovipositing by an Indian python at the 

 National Zoological Park. 



Formal communications: A symposium was held upon the 

 subject, "What kind of characters distinguish a species from a 

 subdivision of a species." The discussion was opened by Prof. 

 A. S. Hitchcock, who was followed for specific groups by N. 

 Hollister, Mammals; H. C. Oberholser, Birds; W. C. Kendall, 

 Fishes; A. N. Caudell, Insects; Paul Bartsch, Mollusks; and 

 S. F. Blake, Plants. 



March 22, 1919— 594th Meeting. 2 



Vice-President N. Hollister presided; 33 persons present. 



Formal Communications: J. W. Gidley, Notice of a large canid 

 from the Cumberland Cave deposits; A. C. Baker, Intermediates 

 in the Aphididae and their relation to alternate hosts; R. H. 

 True, Bernardin de Sainte Pierre as a plant ecologist. 



April 5, 1919— 595th Meeting. 3 



President Smith presided; 55 persons present. 



Informal communications: W. P. Taylor, Note upon the Olym- 

 pic Elk in the State of Washington; A. S. Hitchcock, Exhibit of 

 recent botanical works, A Monographic Study of the Hawaiian 

 Species of Lobelioideae, by Prof. J. F. Rock; and Rumphius's 

 Flora Amboinensis by Prof. E. D. Merrill; H. C. Oberholser, 

 Note upon ornithological activities in 1918; T. S. Palmer, Note 

 upon a rare New Caledonian bird, the Kagu (Rhynochetos juba- 

 tus); T. S. Palmer, Note upon the number of Bison in North 

 America; Alexander Wetmore, Notes upon the shape and size 

 of the pupils of the eyes of birds; N. Dearborn, Note upon the 

 choice of nesting place of a pair of blue birds; H. M. Smith, Ex- 

 hibition of drawings of the deep sea fish, Gargariscus semidatus. 



Formal communications: Agnes Chase, Oil grasses and their 



'Abstract in Journ. Washington Acad. Sci., vol. 9, pp. 234-238, April 19, 1919. 

 ^Abstract in Journ. Washington Acad. Sci., vol 9, pp. 287, 288, May 19. 1919. 

 3 Abstract in Journ. Washington Acad. Sci., vol. 9, pp. 355, 356, June 19, 1919. 



