423 
gravitation, and the direction of the plane in which the capsule 
falls is determined by the direction of strongest illumination, the 
capsule falling toward such source of illumination. 
The Club then adjourned to meet next year with the Associa- 
tion as usual. 
Botanical Notes. 
Lhe Plant World, an wdlustrated monthly Journal of Popular Bot- 
any. The first number of this new serial will be issued October 
1,1897. It will be a 16-page octavo, and will occupy an interme- 
diate position between the technical botanical journals and the 
smaller amateur publications. It will present the facts of plant life 
in simple, popular language, and aim to interest those who desire 
acquaintance with plants and their life history, but who have no 
inclination for a systematic course of study. The editorial staff is 
as follows: Editor-in-chief, F. H. Knowlton, Ph.D., U. S. Na- 
tional Museum, Washington, D. C.; associates, Mr. Charles Louis 
Pollard, Miss Clara E. Cummings, Mr. Walter Hough, Mrs. N. L. 
Britton, Miss Josephine E. Tilden, Mr. A. W. Evans. The sub- 
scription price is $1.00 a year. The publishers are Willard N. 
Clute & Co., Binghampton, N. Y. 
Index to recent Literature relating to American Botany. 
Britten, J. and Baker, E. G. Houston’s Central American Legu- 
minosae. Journ. of Bot. 35: 225-234. Je. 1897. 
Brannon, M. A. The Structure and Development of Grinneliia Amer- 
icana Harv. Ann. Bot. 11: 1-28. ff. 7-4. Mr. 1897. 
Burrage, J. H. The adhesive Discs of Zrcita volubilis A. Juss. Journ 
Linn. Soc. 33: 95-102. pl. 5. 1 Jl. 1897. 
Call, R. E. Some Notes on the Flora and Fauna of Mammoth 
Cave, Ky. Am. Nat. 31: 377-392. My. 1897. 
Clarke, C. B. Distribution of three Sedges. Journ. of Bot. 35: 71- 
73. Mr. 1897. 
Clements, F. E. The Polyphyletic Disposition of Lichens. Am. Nat. 
31: 277-284. Ap. 1897. 
