INDEX TO AMERICAN BOTANICAL LITERATURE 501 
Tapke, V. F. Effects of the modified hot-water treatment on 
germination, growth, and yield of wheat. Jour. Agr. Res. 28: 
79-97. pl. I-5. 5 Ap 1924. 
Taylor, W. R. Further notes on British Columbia algae. Rho- 
dora 26: 160-166. 4 Au 1924. 
Tehon, L.R. Notes on the parasitic fungi of Illinois. Mycologia 
16: niles pl. 73. “Jl” 16 Au 1924. 
Including new species in Septoria (1), Leptothyrium (1), Actinothyrium 
(1), Pirostoma (n), Cercospora (5), Colletotrichum (1). 
Thomas, R. C. A Fusarium disease of celery. Ohio Agr. Exp. 
Sta. Mo. Bull. 9: 88-90. f. 3, 4. My—Je 1924. 
Thomas, R. C. Stewart's disease or bacterial wilt of sugar corn. 
Ohio Agr. Exp. Sta. Mo. Bull. 9: 81-84. My-—Je 1924. 
Tiffany, L. H. Some new forms of Spirogyra and Oedogonium. 
Ohio Jour. Sci. 24: 180-187. p]. 7-3. “Jl” 8 Au 1924. 
Tilford, P. E. Diseases of the potato which may be detected in 
the seed tubers. Ohio Agr. Exp. Sta. Mo. Bull. 9: 85-87. 
f. 1,2. My—Je 1924. 
Toepffer, A. Johann David Schépff, a pioneer of American 
botanical exploration. Torreya 24: 57-58. 21 Au 1924. 
Trelease, W. The relation of botany to agriculture. Science 
II. 60: 89-94. 1 Au 1924. 
Uphof, J. C. T. Estudio botanico de la yuca (Manihoz escul- 
enta Crantz). Revista Agr. Cuba 5": 27-34. f. 1-12. 1924. 
Vickery, H. B. Some nitrogenous constituents of the juice of the 
alfalfa plant. I]. The basic nitrogen. Jour. Biol. Chem. 
61: 117-127. Au 1924. 
Weniger, W. Ergot and its control. N. Dak. Agr. Exp. Sta 
Bull. 176: 1-23. f. 1-12. Ap 1924. : 
Wentz, J. B. Heritable characters of maize Sieg nerpeeedy 
germ. Jour. Hered. 15: 269-272. f. 17-19. “Je” 
1924. 
