INDEX TO AMERICAN BOTANICAL LITERATURE 407 
Tiffany, L. H. A physiological study of growth and repro- 
duction among certain green algae. Ohio Jour. Sci. 24: 
65-98. pl. z. 26 Mr 1924 
Trelease, S. F., & Trelease, H. M. Relation of seed weight to 
growth and variability of wheat in water cultures. Bot. 
Gaz. 77: 199-212. 17 Ap 1924. 
Valleau,W.D. The infection of tobacco plant beds by spitting. 
Science II. 59: 337-338. 11 Ap 1924. 
Viljoen, J. A.. & Fred, E. B. The effect of different kinds of 
wood and wood pulp cellulose on plant growth. Soil Sci. 
17: 199-208. pl. 1-3. Mr 1924 
Washburn, F. L. Breadfruit in the Marquesas. Science II. 
59: 359-360. 18 Ap 1924: 
Waugh, F. A. Phytolacca decandra. The pokeberry. FI. Exch. 
57:1145. 12 Ap 1924. [Illust.] 
Weatherby, C. A. Another Davenport fern herbarium. Rho- 
dora 26: 49-55. ‘“‘Mr’’ 24 Ap 1924 
Weatherby, C. A. Two more wool-waste plants from Westford, 
Mass. Rhodora 26: 38-39. ‘“F’’ 19 Mr 1924. 
Wehmeyer, L. E. The imperfect stage of some higher pyreno- 
mycetes obtained in culture. Mich. Acad: Sci. Papers 3 
245-266. pl. 21-23. The Macmillan Co., New York. 1924. 
Weiss, H. B. Insect food habits and vegetation. Ohio Jour. 
Sci. 24: 100-106. 26 Mr 1924. 
Weldon, G. P. Instability in peach varieties. Jour. Heredity 
15: 86-00. f. 14-16. 24. 
Wilson, E. H. The rhododendrons of Hupeh. Jour. Arnold 
Arboretum 5: 84-107. ‘‘Ap’’ 1924 
Including descriptions of a number of new forms. 
Wilson, E.H. Where orchids are at home. I. Tropical orchids 
of the Old World. Gard. Mag. 39: 215-219. My 1924. 
[Illust.] 
Wise, L. E. Trees as oil producers. Am. Forests and Forest 
Life 30: 301-304. My 1924.  [Lllust.] 
