INDEX TO AMERICAN BOTANICAL LITERATURE 
1920-1924 
The aim of this Index is to include all current botanical literature written by 
Americans, published in America, or based upon American material; the word 
America being used in the broadest sense 
Reviews, and papers that relate exclusively to forestry, agriculture, horti- 
culture, penne products: of vegetable ign, or as arid methods 
nd teriology. 
An occasional esis is made i in favor of some paper appearing in an Ameri- 
can periodical which is devoted wholly to botany. Reprints are not mentioned 
unless they differ from the original in some important particular. If users 
of the Index will call - a of the editor to errors or omissions, their 
kindness will be appreciated. 
This Index is coud a on cards, and furnished in this form to 
subscribers at the rate of three cents for each card. Selections of cards are 
not permitted; each subscriber must take all cards published during the term 
of his subscription. Correspondence relating to the card issue should be 
addressed to Dr. Fred J. Seaver, N. Y. Botanical Garden, Bronx Park, N. Y. 
City. 
Adams, J. The effect on tomato, soy bean, and other plants of 
altering the daily period of light. Am. Jour. Bot. 11: 229- 
232. 21 Ap 1924. 
Anderson, J. P. Botrytis cinerea in Alaska. Phytopathology 
14; 152-155. pl. 3. “Mr” 12 Ap 1924. 
Anderson, P. J. Overwinatering of tobacco wildfire bacteria in 
New England. Phytopathology 14: 132-139. ‘‘Mr” 12 
Ap 1924. 
Artschwager, E. On the anatomy of the sweet potato root, with 
notes on internal breakdown. Jour. Agr. Research 27: 157- 
166. f. 1-6. pl. I-4. 19 Ja 1924 
Babcock, E. B. Genetics and plant taxonomy. Science II. 59: 
327-328. 11 Ap 1924. 
Barnes, P.T. Poplar canker. Horticulture Il. 1: 289. 1 Ap 
1924. 
Bauer, H. A. Studying tree growth with an increment borer. 
Jour. For. 22: 298-301. Mr 1924. 
395 
