2T,2 ROCHESTER ACADEMY OF SCIENCE. [May 26, 



The following lecture was given, illustrated by lantern slides, 

 maps and diagrams : 



THE ISTHMUS OF PANAMA AND THE PANAMA CANAL. 



By Adelbert Cronise. 



May 26, 1896. 



The meeting was held in Anderson Hall, University of Rochester. 

 President Fairchild in the chair. Sixty persons present. 



The President stated that as this was the annual exhibition of the 

 Botanical Section, he would ask the Section to take charge of the 

 meeting. He then introduced Miss Mary E. Macauley, Chairman 

 of the Section, who assumed the chair. 



The following report of Professor Charles Wright Dodge 

 on some algae, presented to the Academy by Mr. George W. 

 Rafter, was read by the President in the absence of Professor 

 Dodge : 



ALGAE PRESENTED BY MR. RAFTER. 



Through the generosity of Mr. George W. Rafter, formerly 

 the Corresponding Secretary of the Society, the Academy has come 

 into the possession of a large and valuable collection of algae, both 

 fresh water and marine forms. The collection consists both of dried 

 specimens mounted on cards, and of specimens in preservative fluids. 

 Of the former there are one hundred eleven (in) specimens, repre- 

 senting seventy-eight (78) named species and varieties of fresh-water 

 algae, seventy (70) of these being from North America and eight (8) 

 from Japan, but represented in North America ; there are also ten 

 (to) cards of fresh- water and twenty (20) cards of marine algae, all 

 of which are unnamed. 



The specimens in preservative fluid are contained in fifty-one 

 (51) vials, of which twenty-nine (29) contain named species and 

 fifteen (15) named genera, the remainder being duplicates. In the 

 collection are also forty (40) additional vials whose contents have 

 either been ruined by the evaporation of the preservative fluid, or 

 which bear no marks of identification. 



