THE PROCEEDINGS 



OF THE 



WASHINGTON ACADEMY OF SCIENCES 



There were printed, from 1898 to the discontinuance of 

 the series in 1911, thirteen volumes of -the Proceedings of 

 the Washington Academy of Sciences. The Proceedings 

 consist of original papers, covering a variety of subjects. 

 The volumes contain from 200 to 700 pages and separates 

 of each paper, to a limited number, are also available. 

 A list of the titles with prices will be furnished on request 

 by the Treasurer of the Academy, Mr. Alfred H. Brooks, 

 Geological Survey, Washington, D. C, by William Wesley 

 & Son, 28 Essex Street, Strand, London, or Mayer and 

 Muller, Prinz Louis-Ferdinand Str., Berlin. 



