Proceedings. xvii 



March 10, 1900 32oth Meeting. 



The President in the chair and 125 persons present. 



The evening was devoted to a lecture by Prof. Dean C. Wor 

 cester on "The Birds and Mammals of the Philippines" (illus 

 trated by lantern slides). 



March 24, 1900 32ist Meeting. 



Vice-president Lucas in the chair and 46 persons present. 

 B. W. Evermann exhibited a number of colored illustrations 

 of the peculiar and interesting fishes of Puerto Rico. 

 The following communications were presented: 

 Sylvester D. Judd: Feeding Experiments with Captive Birds. 

 W. H. Osgood: Notes on a Trip down the Yukon River.* 



F. A. Lucas: The Tusks of the Mammoth. 



i 



April 7, 1900 322d Meeting. 



Vice-president Ashmead in the chair and 37 persons present. 



W. P. Hay exhibited living specimens of an interesting 

 Crustacean (Branchipus serratus). It was stated that this 

 genus, which is normally a fresh water form, has been trans 

 formed into a salt water form by being grown in salt solutions. 



F. D. Gardner exhibited specimens of fine oolitic sand from 

 shore of Salt Lake. 



The following communications were presented: 



L. O. Howard: Some New Illustrations of Insects (illustrated 

 with lantern slides). 



F. W. True: The Newfoundland Whale Fishery (illustrated 

 with lantern slides). 



April 21, 1900 323d Meeting. 



The President in the chair and 28 persons present. 



H. J. Webber described the migration of the vegetative nu 

 cleus in the pollen-tube of Zamia from the apex of the tube, 

 when growth in that region ceases, back to the pollen-grain end 

 of tne tube, when the growth begins in that section of the tube 

 just previous to fecundation. 



*N. Am. Fauna, No. 19. October 6, 1900. Under the title "Results 

 of a Biological Reconnoissance of the Yukon River Region." 



