20 Proceedings. 



a few impressions received during a visit to New Orleans in De- 

 cember last. They were chiefly botanical impressions, and intro- 

 duced some observations relating to the geograi)hical distribution 

 of plants. 



W. E. Leonard then read before the Acadeni}^ a review of 

 Professor Sargent's monograph ''The Forest Trees of the United 

 States," being vol. ix of the Tenth Census Reports. The maps 

 accompanying the mongraph served to illustrate the statements 

 and quotations made. 



A paper by John Leiberg was read by Mr. Upham, entitled, 

 "The Forest Trees of Idaho.'' 



[See paper M.] 



Some discussion of tlie p.iper followed the reading, partici- 

 pated in by members Hemiup, Hovey and Upham. 



April 7, 1885. 



Twenty-four persons present. 



Nathan Butler presented a skinning knife from Ellsworth, 

 Me., found one and one-half feet below the surface. 



Professor J. A . Dodge, presented a paper from the Section of 

 Chemistry entitled: "Some Analyses of Coals and Lignites from 

 the Northern Pacific territory." [See paper N.] 



May 5, 1885. 



Twenty-six persons present. 



C. W. Hall, in introducing the program prepared for the 

 evening by the Section of Geology reported the work engaged 

 in during the year past by the several members of the section 

 following Avith an outline of his own observations on the Geology 

 of the Southern portion of the State and closing with a 

 summary of Irving's researches in the great Keweenawan 

 trough of Lake Superior as recently published in his Monograph.* 



Rev. H. C. Hovey, read a paper on the Geology of some por- 

 tions of Australia closing with a resume of the structure of the 

 continent. 



Following that paper Dr. Hovey gave a description of the 

 newly discovered and interesting caves of the Fish river valley. 

 Fifteen stereopticon views illustrated this description. 



Warren Upham, recounted some of the results of recent re- 



*Il. D. Irving. The Copper bearing rocks of Lake Superior. Monograph 

 V, U. S. Geol. Survey, Washington, 1883. 



