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characters, and induces the flow of nutritive substances to these 
cells, and hypertrophy results. On the decay of the tubercle, 
the germ-like bodies pass into the soil (where they can always be 
found) and infect other roots; it is very probable they may be of 
extreme importance in agriculture.” 
Lubercles on the Roots of Leguminose.* (Journ. Roy. Mic. 
Soc. 1887, p. 610.) 
The studies conducted by A. Tschirsh lead him to the con- 
clusion that they occur on all species of this order, always on the 
roots; that they are storage organs for nitrogenous matters pre- 
vious to the ripening of the seeds, and attain their maximum 
development when the plant is in flower. They are of two 
kinds, the Lupinus type and Robinia type. 
Tubercles on the Roots of Alder and Eleagnacee.t (Journ. 
Roy. Mic. Soc. 1887, p. 611.) 
B. Frank has modified his previous views as to their nature and 
differs entirely from those who regard them as due to parasitic 
fungi ; they prove to be accumulations of newly formed albu- 
minous substances and are therefore identical with those on the 
Leguminose. ‘The alleged parasitic fungi Schinzia Alni, 
S. Leguminosarum, Plasmodiophora Alni,and Frankia subtilis 
must therefore be erased from mycology.” 
Proceedings of the Club. 
A meeting was held on Tuesday evening, August 9th, 1887, 
in Hamilton Hall, Columbia College, President Newberry in the 
chair, and forty-five persons present. Among the visitors were 
many members of ‘the American Association for the Advance- 
ment of Science. In the absence of the Secretary, Dr. N. L. 
Britton was elected Secretary pro tempore. 
Mrs. Cornelius Van Brunt, Mr. C. S. Boyer, and Jacob J. J. 
Gress were elected Active Members. 
The Secretary read a letter from Dr. George Vasey calling 
attention to the fact that the United States Government has done 
nothing for botanical exploration for many years; stating also 
* Ber. Deutsch. Bot. Gesell. v, (1887), pp- 58-98, (1 pl). 
+ Ber. Deutsch. Bot. Gesell. v, (1887), pp. 50-58, (1 pl). 
