INDEX TO AMERICAN BOTANICAL LITERATURE 
1916-1918 
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 Amer- 
ica being used in the broadest sense. 
eviews, and papers ine aie exclusively to forestry, agriculture, horticulture, 
manufactured products of vegetable origin, or laboratory methods are not included, anc 
no ettenspt is made to index the literature of bacteriology. An occasional exception is 
made in favor of some paper appearing in an American 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 the attention of the editor 
to errors or omissions, their kindness will*be appreciated. 
This Index is os monthly on cards, furnished in this form to subscribers 
at the rate of on t for each card, Selections of cards are not permitied ; each 
subscriber must jake ‘aD cards published ae ihe term of his subscription, Corre- 
mdence relating to the card issue should be addressed to the Treasurer of the Torrey 
Botanical Club 
Alderman, W. H. Experimental work on self-sterility of the apple. 
Proc. Am. Soc. Hort. Sci. 1917: 94-101. Mr 1918. 
Allard, H. A. Effects of various salts, acids, germicides, etc., upon the 
infectivity of the virus causing the mosaic disease of tobacco.. 
Jour. Agr. Research 13: 619-637. 17 Je 1918. 
Anthony, R. D. Some results in the breeding of small fruits. Proc. 
Soc. Hort. Sci. 1915: 121-125. F 1916. 
Anthony, R. D., & Wellington, J. W. Experiments in bud selection with 
the apple and violet at Geneva. Proc. Am. Soc. Hort. Sci. 1916: 
71-76. Mr 1917. 
Arthur, J.C. Uredinales of Guatemala based on collections by E. W. 
D. Holway. I. Introduction, Coleosporiaceae and Uredinaceae. 
Am. Jour. Bot. 5: 325-336. 6 Jl 1918. 
Atkinson, G. F. Twin hybrids from crosses of Oenothera Lamarckiana 
and Franciscana with Oe. pycnocarpa, in the F; and F;. Proc. Am. 
Philos. Soc. 57: 130-143. pl. 1-4. 14 Je 1918. 
Babcock, E. B., & Clausen, R. E. Genetics in relation to agriculture. 
i-xx + 1-675. pl. 1-4 +f. 1-239. New York. 1918. 
Bates, J.M. Anew Kochia. Am. Bot. 24: 51,52. My 1918. 
Kochia alata sp. nov. 
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