272 
The Ohio Naturalist. 
[Vol. XI, No. 3, 
Coagulated Latex. The coaglum is plastic and can be moulded 
into cakes resembling some of the cheaper grades of rubber. 
The whey contains mineral matter and sugar. 
Caoutchouc. Obtained from the coaglum. Is flabby; lacks 
strength and firmness; is high in gravity. Responds to the sulfur 
chloride and bromine tests. Yield of rubber, on basis of latex, 
is 2 to 3%. 
Resin. White, tasteless, odorless. Gives “asclepione, ” 
described by Watts as “radiating crystals insoluble in water and 
alcohol, and is not attacked by dilute caustic.” 
This plant has been suggested as a source of crude rubber. 
The project has engaged the serious attention of several parties 
during the past twenty years. A careful study of the question, 
covering a period of twelve years, indicates that while rubber is a 
product of the plant, the amount is so small, its quality is so 
inferior, and its cost of production is so high, that a profitable 
industry is out of the question. 
Orton Hall, October 3, 1910. 
The meeting was called to order by the President, and the 
minutes of the previous meeting were read and approved. 
Professors J. H. Schaffner, J. S. Hine, and J. A. Hambleton 
were appointed to act as a committee to nominate officers for the 
year. 
The program consisted of reports on Summer Work by the 
members. 
Prof. W. R. Lazenby made some observations on the trees, 
and spoke of the scarcity of seed this year. 
Prof. Schaffner spoke of his observations cn leaf markings, and 
the relation of plants to the substratum. 
Prof. Hine carried on his study of the mammals of the state 
during the summer. 
Prof. Hambleton spent the most of the summer at the Lake 
Laboratory. 
Miss Dctmers gave a few observations cn her work at Buckeye 
Lake. 
C. L. Metcalf reported good early collecting this year for the 
entomologist, his special group being the Syrphidae. 
B. W. Wells spent the earlier part of the summer at the Lake 
Laboratory. 
B. F. Fulton made some observations cn birds. 
Lionel King reported a profitable summer at the Botanical 
Gardens in Cleveland. 
M. G. Dickey, Secretary. 
Date of Publication, January 16, 1911. 
N. 
