1206 
Journal of Agricultural Research 
Vol. XXX 
Page 
Storage-Rot Fungi in Sweet Potato, Study: 
L. L. Harter- 961-969 
Storage-rot, fungi of.. 961 
Strawberry root louse- 
ant control_ 448 
distribution, economic importance, and 
life history- 441-448 
enemies_ 448-449 
in Tennessee: S. Marcovitch_ 441-449 
Streak, potato disease, symptoms and ex¬ 
periments_ 494-507, 510-512, 516 
Sugar- 
cane- 
presence in grape juices_ 1150-1152 
See also Cane, sugar. 
presence in grapes_ 1150-1155 
Sulphur- 
Effect on Fertility Elements of Palouse 
Silt Loam: Lewis W. Erdman_ 451-462 
Relation to Alfalfa Production: Oscar C. 
Bruce- 937-947 
removal from soil by crops_ 937 
Sweet potato— 
rot by Diplodia tubericola _ 965 
Storage-Rot Fungi, Mucor racemosus and 
Diplodia tubericola: L. L. Harter_ 961-969 
Sweet potatoes- 
infection by Different Species of Rhizo- 
pus, Influence of Temperature: J. I. 
Lauritzen and L. L. Harter_ 793-810 
Syngamus Sieb. and Cyasthostoma E. 
Blanch. Nematode Genera, Review: 
Edward A. Chapin__ 557-570 
Tangerine, immunity to wither tip from 
Gloeosporium...__ 630-635 
Tannin, presence in grapes, studies_1155-1157 
Taper Curves (timber measurement)— 
Construction: Frederick S. Baker.. 609-624 
paraboloid formula, discussion.. 621-624 
Taxonomic Studies of Fusarium, Funda¬ 
mentals for: H. W. Wollenweber, C. D. 
Sherbakoff, O. A. Reinking, Helen 
Johann, and Alice A. Bailey_ 833-843 
Temperature- 
effect o n seed production of beets_815,818 
factor in- 
infection and decay of sweet potatoes 
by Rhizopus.__ 793-810 
spread of root rot of peas_314-318 
Thom, Charles, and Lathrop, Elbert C.: 
Psilocybe as a Fermenting Agent in Or¬ 
ganic DSbris_ 625-628 
Timber- 
Curves, Study: Frederick S. Baker_ 609-624 
estimating, methods and difficulties_ 609-624 
See also Trees. 
Tobacco— 
cropping tests special_ 1101-1110 
experiments for effect on soils, conclusions 
from extensive work_ 1131-1132 
rotation, effect of other crops on yields: 
W. W. Garner, W. M. Lunn, and 
D. E. Brown_ 1095-1132 
Tomato- 
Mosaic, Necrosis, Hyperplasia, and Ad¬ 
hesions: Max W. Gardner_ 871-888 
Toxicity— 
Dicyanodiamide on Plants, Studies: F. 
E. Allison, J. J. Skinner, and F. R. 
Reid_419-429 
onion juice, study- 175-187 
Toxins, soil, discussion_ 1095-1097 
Travassosius americanus n. sp., menatode 
from beaver, description_ 679 
Trees— 
forms, mathematical expression_ 615 
Mortality from Spruce Budworm, Rela¬ 
tion to Previous Growth: F. C. Craig¬ 
head_!_ 541-555 
reproduction— 
after forest fires_ 1179-1180,1183,1186,1189 
Effect of Forest Fires in Idaho: J. A. 
Larsen_ 1177-1197 
seedlings, causes of losses, table_ 640 
study and use in estimating timber_ 609,622 
variations in form and estimating of vol¬ 
ume_ 609-610 
Trees—Continued. 
volume tables— Page 
difficulties_ 609 
frustum form factors__ 615 
See also Fir; Pine; Spruce; Timber; 
White pine. 
Trichoderma, presence in fermenting 
bagasse_ 625 
Turnips, relation to Mucor racemoms _ 968 
Turpentining, chipping experiments, for 
effect on gum production_ 81-93 
Urediniospores, Cronartium ribicola and C. 
occidentale, Comparison: Reginald H. 
Colley_ 283-291 
Ustilago zeae , infection of corn, studies_ 161-173 
Vaccination, Dogs, Studies on the Single¬ 
injection Method as a Prophylactic 
Against Rabies: Harry W. Schoening.. 431-439 
Vaccine, use against rabies in dogs, prepa¬ 
ration, sources, etc__ 431-432 
Vancouver swamp, blister rust infection.597,598 
Variability, Burt Oat, Study of: Franklin 
A. Coffin, John H. Parker, and Karl S. 
Quisenberry..___ 1-64 
Vegetable substances, metals found in. 195 
Vegetables. See Beets; Cabbage; Carrots; 
Citron; Cucumbers; Onions; Peas; 
Tomatoes; Turnips. 
Vegetative Organs, Sugar Cane, Anatomy 
of; Ernst Artschwager__ 197-241 
Venturia inaequalis, spore— 
content of orchard air, studies__ 529-537 
Dissemination in Relation to Apple Scab: 
C. N. Frey and G. W. Keitt. 529-540 
Vineyard, experimental, location, environ¬ 
ment, historical notes, etc... 1134-1137 
Volume tables, construction and errors_ 609 
Wahlenberg, W. G — 
Reforestation by Seed Sowing in the 
Northern Rocky Mountains... 637-641 
Sowing and Planting Season for Western 
Yellow Pine_ 245-251 
Waksman, Selman A., and Lomanitz. S.: 
Contribution to the Chemistry of De¬ 
composition of Proteins and Amino 
Acids by Various Groups of Micro¬ 
organisms- 263-281 
Walker, J. C — 
Bachmann, Freda M., and Lindegren, 
Carl C.: Further Studies on the Tox¬ 
icity of Juice Extracted from Succulent 
Onion Scales- 175-187 
Control of Mycelial Neck Rot of Onion 
by Artificial Curing- 365-373 
Jones, L. R., and Monteith, John, jr.: 
Fusarium Resistant Cabbage; Progress 
with Second Early Varieties_ 1027-1034 
Wangler, J. G., and Jodidi, S. L.: Physio¬ 
logical and Biochemical Studies on 
Cereals. IV. On the Presence of 
Amino Acids and Polypeptides in the 
Ungerminated Rye Kernel_ 989-994 
Washington, blister-rust infection, loca¬ 
tions..-- 605 
Waste, ferment from Psilocybe_ 625-628 
Weather- 
Conditions— 
Effect on chemical composition of 
grape juice_ 1133-1134,1141-1157,1174-1175 
Relation of Cotton Yield in Louisiana: 
Bradford B. Smith_ 1083-1086 
Relation to smut infection in corn_ 165 
Spread of White Pine Blister Rust: L. H. 
Pennington_ 593-607 
Weevil, alfalfa. See Alfalfa weevil. 
Wells, C. F., and Dunbar, B. A.: A Study 
of the Essential Plant Foods Recover¬ 
able from the Manure of Dairy Cows.. 985-988 
Whetzel, H. H., Jackson, H. S., and Mains, 
E. B.: The Composite Life History of 
Puccinia podophylli Schw__ 65-79 
White pine— 
ages of seedlings on burns after several 
years_ 1195 
Blister Rust, Spread Under Weather 
Conditions: L. H. Pennington.. 593-607 
Winds— 
agency in spread of blister rust in Pacific 
Northwest. 600-606 
records in Pacific Northwest_ 601 
