1270 
Joumal of Agricultural Research 
Vol. XXVIII 
Pag© 
Seeds—C ontinued. 
cotton, prewetting method of germination 287-288 
live, in cottonseed sample, demonstration. _ 287 
Seepweed— 
indicator of land value.. Ill, 118,121,122,125,126 
on southwestern desert soils_ 773,778,796-799 
Semiarid United States, vegetation, types 
and their significance.. 9&-128 
Serological tests, cattle, for infectious abor¬ 
tion. .. 613,614,617-620 
Severinia buxifolia, resistance to citrus canker. 228 
Sewell, M. C.: Relation of the Molecular 
Proportions in the Nutrient Solution to 
the Growth of Wheat.... 387-393 
Sex— 
determination in chickens during embry¬ 
onic development__ 214-220 
hemp, influence of environment_ 1067-1080 
ratio, chickens, experimental study and 
discussion__ 200-220 
Shadscale, indicator of land value... 109, 
110,118,120,125 
Shamel, A. D.: Bud Selection as Related to 
Quality of Crop in the Washington Navel 
Orange.. 521-526 
Shantz, H. L., and— 
Aldous, A. E.: Types of Vegetation in the 
Semiarid Portion of the United States, 
etc__ 99-128 
Piemeisel, R. L.: Indicator Significance of 
the Natural Vegetation of the Southwest¬ 
ern Desert Region. 721-802 
Sharkey clay soil, colloids from, breaking 
strength..... 508-512 
Shaw, R. H., and Wright, P. A.: A Study of 
Ensiling a Mixture of Sudan Grass with a 
Legume.. 255-259 
Shear, C. L.i Botryosphaeria and Physalo- 
spora on Currant and Apple__ 585-598 
Shedd, O. M.: The Determination of Nitrate 
and Ammonia in Nitrogenous Materials.. 527-539 
Sheep, grazing, injury to young coniferous 
trees 1145-1146 
Sheets, E. W.: Effect of Winter Rations on 
Subsequent Pasture Gains of Steers... 1215-1232 
Shelterwood— 
cutting method, effect on reproduction_ 1234, 
1235,1239,1241,1242 
method of cutting Douglas fir, effect on 
reproduction.. 1234,1235,1237,1239-1242 
Shinnery, indicator of land value_ 114, 
118,120,123,124 
Shive’s nutrient solution, formula__ 388 
Shoots, young orange trees, composition... 382,383 
Shrinkage, steers in transit and in dressing.. 1230- 
1231 
Shrubs, Wasatch Mountains, freezing-point, 
depressions, and osmotic pressures_ 866- 
Silage— 871,878^79 
crops, mixture, typical combinations_ 255 
Sudan-grass mixture with legume, paya¬ 
bility and composition__ 257-258 
Silking, corn, relation to maturity.. 409-411 
Silvanus cassiae , heating of bran__ 1105 
Silver, James: The European Hare (Lepus 
europaeus Pallas) in North America.. 1133-1137 
Sitophilus — 
granarius. See Weevil, granary; Granary 
weevil. 
oryza — 
heating of grain. 1105,1113,1115 
See also Weevil, rice; Rice weevil. 
Skin disease, result of Ascaris poisoning_ 578, 
579,580,581 
Skinner, J. J.: Greenhouse Experiments with 
Atmospheric Nitrogen Fertilizers and Re¬ 
lated Compounds... 971-976 
Skull, meadow mouse, description and meas¬ 
urement of bones and teeth... 992-1014 
Skulls, meadow mouse, cleaning and prepar¬ 
ing for collection... 978 
Slash disposal in cutting Douglas fir, effect on 
reproduction. 1236-1241 
Smalling, cotton growth disorder_... 810-811 
Smut, wheat, hot-water treatment modified. _ 79-98 
Snails, relation to root disease of sugar cane in 
Louisiana__ 969-970 
Snapdragon, infestation with Heterodera 
radicicola . 1061 
Page 
Snodgrass, R. E.: Anatomy and Metamor¬ 
phosis of the Apple Maggot, Khagoletis 
pomonella Walsh..... 1-36 
Snyder, T. E., and St. George, R. A.: Deter¬ 
mination of Temperatures Fatal to the 
Powder-post Beetle, Lyctus planicollis Le¬ 
conte, by Steaming Infested Ash and Oak 
Lumber in a Kiln. 1033-1038 
Sodium— 
cyanid, fumigation of grain for insect pests. 1106, 
1107,1108,1113,1114,1115 
effect on orange tree growth and composition. 278, 
281,283 
Soil- 
colloids— 
binding power, factors influencing_ 499-513 
heat of wetting.... 927-935 
moisture, relation to clubroot__ 549-562 
particles, noncolloidal, heat of wetting... 929-930 
temperature, relation to clubroot. 549-562 
treatment for control of larkspur leafspot... 269 
Soils— 
bacteria, effect of cyanamid and related 
compounds.....1159-1166 
colloidal material- 
estimating, heat of wetting as basis_ 930-934 
heat of wetting___ 928-929 
desert, southwestern, composition and salts. 723, 
724r-725 
salinity, relation to chlorid content of cotton 
plants...... 696,701 
Soppeland, Lulu: Flavobacterium suaveolens, 
a New Species of Aromatic Bacillus Isolated 
from Dairy Wastes.. 275-276 
Sowing western white pine seed, fall versus 
spring__ 1128-1131 
Soybeans, silage, composition... 258 
Spacing, cotton, experiments in southern 
California____ ____ 1081-1093 
Sphaeropsis malorum, perfect stage found in 
currant.. 584-585 
Spinach, susceptibility to curly-top.... 315 
Spore, discharge, mechanics studies_ 923,924,926 
Sporocarps of Physalospora malorum , size and 
structure, relation to host... 586-587 
Spraying, pecans for scab control. 326-327 
Sprays— 
absorbed organic compounds, insecticidal 
value.. 399-400 
inorganic nonarsenical compounds, testing 
as insecticides.. 396 
pecan scab. 326-327 
Spring growth, citrus, relation to scab infec¬ 
tion...—.... 243-253 
Spruce, Engelmann, growth in Douglas fir 
forests.__ 1237-1240 
Squares, cotton, shedding, effect of crazy-top 
and other diseases.. 817 
Squash lady beetle, insecticides.. 401 
St. George, R. A., and Snyder, T. E.: Deter¬ 
mination of Temperatures Fatal to the 
Powder-post Beetle, Lyctus planicollis Le¬ 
conte, by Steaming Infested Ash and Oak 
Lumber in a Kiln_ 1033-1038 
Stahl, C. F., and Eubanks, Carsner: Studies 
on Curly-top Disease of the Sugar Beet.. 297-320 
Stakman, E. C., and Levine, M. N.: Pucdnia 
graminis poae Erikss. and Henn. in the 
United States.. 541-548 
Staminate hemp plants, description. 1067 
Star-of-Bethlehem, host of barley leaf 
rust.*....1124-1125 
Steers— 
gains on pasture, effects of winter ra¬ 
tions...- 1215-1232 
rations, winter and summer, composition 
and amount.. 1217-1218 
shrinkage in transit and in dressing_ 1230-1231 
Steiner, G.: On Some Plant Parasitic Nemas 
and Related Forms. 1059-1066 
Stellaria media, inoculation with curly-top... 312, 
313,315 
Stem rust, resistance of oat varities. 705-720 
Stenosis, cotton growth disorder.819-811 
Sterility, wheat hybrids.._...1017-1032 
Stevens, Neil E.— 
and Dodge, B. O.: The Khizoctonia Brown 
Rot and Other Fruit Rots of Straw¬ 
berries. 643-648 
