PROCEEDINGS OF THE ACADEMY AND AFFILIATED 



SOCIETIES 

 WASHINGTON ACADEMY OF SCIENCES 



141ST MEETING 



The 141st meeting of the Academy was held jointly with the Biolog- 

 ical Society of Washington at the Cosmos Club, at 8.15 p.m. on Satur- 

 day, February 21 1920. Alfred G Mayor, Director of the Depart- 

 ment of Marine Biology of the Carnegie Institution of Washington, 

 delivered an address, illustrated with lantern slides, on The coral reefs 

 of American Samoa. A brief abstract of the address has been pub- 

 lished in the proceedings of the Biological Society (see this Journal, 

 10: 309. May 19, 1920). 



142D meeting 



The i42d meeting was held jointly with the Anthropological Society 

 o.' Washington in the auditorium of the National Museum, at 8.15 

 p.m. on Saturday, March 6, 1920. President G. M. Kober of the 

 Anthropological Society presided. W. H. R. RivERS, of St. John's 

 College, Cambridge, England, delivered an address on Ethnology: its 

 aims and needs. 



143D MEETING 



The 143d meeting was held at the Cosmos Club at 8.15 p.m. on 

 Thursday, March 18, 1920. President C. L Alsberg presided. J. 

 Walter Fewkes, Chief of the Bureau of American Ethnology, Smith- 

 sonian Institution, delivered an address, illustrated with lantern slides, 

 on American archaeology: its history and technique. 



144TH MEETING 



The 144th meeting was held jointly with the Chemical Society of 

 Washington (the local section or the American Chemical Society) at 

 the Cosmos Club, at 8.15 p.m. on Thursday, March 25, 1920. Presi- 

 dent C. O. Johns of the Chemical Society presided. E. T. Wherry, 

 of the Bureau of Chemistry, U. S. Department of Agriculture, delivered 

 an address, illustrated with lantern slides and experiments, on Soil 

 reaction and plant distribution. 



The methods used in testing soils, and a proposed method of state- 

 ment of acidity and alkalinity, have already been published in the 

 Journal,^ and a paper on the subject for one of the botanical journals 

 is in preparation. 



1 This Journal, 9: 305-309. 1919. 10:217-223. April 19, 1920. 



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