x Proceedings of the Biological Society of Washington. 



Informal communications: A. Wetmore, Remarks on certain 

 food habits of the grackle; A. S. Hitchcock, Note on Rydberg's 

 recently issued flora of the Rocky Mountain region; Paul 

 Bartsch, Note on a collection of Philippine shells from the Island 

 of Luzon; L. 0. Howard, Note on the utilization of acorns for 

 the manufacture of alcohol; W. L. McAtee, Note on the be- 

 havior of ducks, geese and other birds during the recent con- 

 tinued cold weather in North Carolina. 



Formal communications: Emerson Stringham, Notes on the 

 speed of fishes, especially the Alewife; W. E. Safford, Natural 

 history of Paradise Key, Florida.* 



February 9, 1918- 579th Meeting. t 



President Rose in the chair; 36 persons present. 



Informal communications: A. S. Hitchcock, Note on the feeding 

 of gulls and pelicans at Tobago. 



Formal communications: S. A. Rohwer, Notes on the nesting 

 habits of the social wasps; R. W. Shufeldt, biological anomalies 

 as exemplified b}^ the collection in the Army Medical Museum, \ 



February 23, 1918— 580th Meeting.^ 



President Rose in the chair; 48 persons present. 



Miss M. T. Cooke and Edmund D. Gibson were elected to 

 membership. 



Informal communications: Vernon Bailey, Exhibition and 

 description of some new born opossums; R. W. Shufeldt, Exhi- 

 bition and description of a young two-headed box tortoise; 

 C. D. Marsh, Note on Ward and Whipple's recently issued 

 Fresh- Water Biology. 



Formal communications: O. W. Barrett, A promising new 

 source of sugar; W. C. Kendall, Some unrecognized anatomical 

 facts and their relation to fish-cultural practices. 



March 9, 1918— 581st Meeting.ll 



President Rose in the chair; 30 persons present. 

 Miss E. E. Stevenson was elected to membership. 



* To be published in Proc. U. S. Nat. Mus. 



f Abstracts in Journ. Washington Acad. Sci., vol. 8, pp. 211, 212, April 4, 1918. 



X Medical Record, April 13, 1918. 



§ Abstracts in Journ. Washington Acad. Sci., vol. 8, pp. 212-214, April 4, 1918. 



i| Abstracts in Journ. Washington Acad. Sci., vol. 8, pp. 290-29S, May 4, 1918. 



