Oct. i-Dec. 31, 1917 
Index 
725 
Page 
Severson, B. O., and Gerlaugh, P. (paper): A 
Statistical Study of Body Weights, Gains, 
and Measurements of Steers during the Fat¬ 
tening Period.383-394 
Shantz, H. E., and Piemeisel, R. E. (paper): 
Fungus Fairy Rings in Eastern Colorado 
and their Effect on Vegetation. 191-246 
Sharp, E. T., method for determination of 
hygroscopic coefficient. 151 
Shear, C. E- (paper): Endrot of Cranberries. 35-42 
Shedd, O. M. (paper): Effect of Sulphur on 
Different Crops and Soils. 91-103 
Sheep- 
lethal dose of Eupatorium urticaefolium. ... 706 
measurements.608-624 
red blood corpuscles, use in diagnosis of 
glanders. 67-7 1 
toxic dose of Eupatorium urticaefolium for.. 70 6 
weight. 608,611,612,614 
See also Eamb. 
Shull, J. M., and Piper, C. V. (paper): Struc¬ 
ture of the Pod and the Seed of the Georgia 
Velvet Bean, Stizolobium deeringianum. 673-676 
Silica, acid-soluble, determination of in soils 664-665 
Stphonophora viticola, syn. Macrosiphum illi- 
noi sensts. 
Sitanion hystrix, effect of fungus fairy rings on 239 
Slab, concrete, tests.. 505-520 
Slows, disease of animals caused by Eupa¬ 
torium urticaefolium . 699-716 
Smith, E. H., and Rietz, H. E. (paper): A 
Statistical Study of Same Indirect Effects of 
Certain Selections in Breeding Indian 
Com. 105-146 
Snakeroot, white. See Eupatorium urticae¬ 
folium. 
Snyder, R. S. and Potter, R. S. (paper): De¬ 
composition of Green and Stable Manures 
in Soil.677-698 
Sodium— 
carbonate, changes in soil induced by. 542,545,546 
chlorid, changes in soil induced by. 53S~54°, 
544-546 
cyanid, fumigation of soil with. 432-434 
Soil- 
absorption of hydrocyanioacid by.430-434 
acid— 
lime requirement of. 665-666 
ratios between calcium oxid and iron 
oxid plus aluminium oxid in.661-664 
alkaline, ratios between calcium oxid and 
iron oxid plus aluminium oxid in.661-664 
character of, used in pumping from shallow 
well. 339^340 
decomposition of manure in. 677-698 
distribution of mycelium of Agaricus tabu- 
laris in. 217 
effect of— 
compactness upon nitrate accumulation. 46-63 
depth of column upon nitrate accumula¬ 
tion.46-63 
on fruiting bodies in fungus fairy rings. 208-217 
sulphur on. 91-103 
factors affecting accumulation of nitrate 
nitrogen in.. i . 43-64 
Page 
Soil—Continued 
fumigation— 
with hydrocyanic-acid gas.421-436 
with sodium cyanid..432-434 
Hilgard’s method for determination of hy¬ 
groscopic coefficient in.150,151,152,163-164 
hygroscopic coefficient— 
influence of— 
grinding on. 159 
of containers on. 159-160 
temperature on. 156-159 
. time of exposure on. 156 
Eipman and Sharp’s method for determina¬ 
tion of hygroscopic coefficient in. 151 
moisture, effect on— 
Agaricus tabularis .236-237 
nitrate accumulation.48-63 
movement of soluble salts through. 531-547 
mycelium of fairy rings in. 217-229 
physical changes in, effect of fungus fairy 
rings on. 225 
physical-chemical action of hydrocyanic- 
acid gas in.428-434 
rate of loss of hygroscopic moisture in .... 153-154 
treated, amount of carbon evolved as carbon 
dioxidin.680-697 
Soil Acidity and the Hydrolytic Ratio in Soils 
(paper). 659-672 
Soja max — 
effect of sulphur on. 93 > 95-103 
protein in. 102 
Solanum tuberosum — 
host of Tylenchus penetrans . 27, 29,30,31 
injury caused by Tylenchus penetrans .29,30 
Some Factors Affecting Nitrate-Nitrogen 
Accumulation in Soil (paper). 43-64 
Some Notes on the Direct Determination of 
the Hygroscopic Coefficient (paper). 147-166 
Soybean. See Soja max . 
Species, new.,.32,36,636 
Spelt. See Triticum spelta. 
Spruce, Englemann. See Picea engelmanni. 
Spurway, C. H. (paper): Soil Acidity and the 
Hydrolytic Ratio in Soils. 659-672 
Squaw weed, syn. White snakeroot. 
Staining, double, method used in diagnosing 
white-pine blister-rust. 281-284 
Statistical Study of Body Weights, Gains, 
and Measurements of Steers during the 
Fattening Period (paper).383-394 
Statistical Study of Some Indirect Effects of 
Certain Selections in Breeding Indian 
Corn, A (paper). 105-146 
Steer- 
body weight during fattening period..... 383-394 
measurements during fattening period... 383-394 
See also Cattle. 
Steria, syn. White snakeroot. 
Stevens, Neil (paper): Temperatures of the 
Cranberry Regions of the United States in 
Relation to the Growth of Certain Fungi. 521-529 
Stictocephala festina , effect of hydrocyanic- 
add gas on. 423 
Stizolobium deeringianum — 
characteristic elements. 675 
food value. 673 
