PROCEEDINGS OF THE ACADEMY AND AFFILIATED 



SOCIETIES 



BIOLOGICAL SOCIETY OF WASHINGTON 



The 586th regular meeting of the Society was held in the Meeting 

 House of the Friends' School, 1809 I St. N. W. Saturday, May 18, 

 1918; called to order at 8.40 p.m. by President Rose; 50 persons present. 



On recommendation of the Council the following named persons 

 were elected to membership in the Society: Rudolph Martin Ander- 

 son, Zoologist, Geological Survey, Ottawa, Canada; W. C. Henderson, 

 Biological Survey, Washington, D. C; Ralph V. Chamberlin, Mu- 

 seum Comparative Zoology, Cambridge, Mass. ; J. R. de la Torre 

 BuENO, White Plains, N. Y.; Amos W. Butler, Room 93, State House, 

 Indianapolis, Indiana. 



President Rose announced that he had received the copy of Ex- 

 President Roosevelt's book A Booklover's Holiday in the Open referred 

 to at the 584th meeting. The copy was passed among the members of 

 the Society. President Rose said he would make suitable acknowl- 

 edgment. 



Mr. W. L. McAtee called attention to the appearance of Bulletin 

 1 , A Sketch of the Natural History of the District of Columbia together 

 with an indexed edition of the U. S. Geological Survey's 1917 Map of 

 Washington and Vicinity. The cost is S2.00 per copy or S2.15 sent by 

 mail. Copies of the bulletin were on hand for distribution. Already 

 40 copies had been disposed of and it was hoped the work would have 

 a ready sale in order that the Society might recover its investment. 



The regular program was an illustrated lecture by Dr. J. C. Mer- 

 RL\M, Cave hunting in California. Dr. Merriam gave a very interest- 

 ing account of his explorations of certain caves of California. He 

 discussed the bearing of his discoveries in these caves on anthropology 

 and paleontology. There was no evidence of Pleistocene man in his 

 findings. 



M. W. Lyon, Jr., Recording Secretary. 



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