Oct. 4, 1915-Mar. 27, 1916 
Index 
1207 
Water maple. See Acer sacckarinum. Page 
Water vapor in soils, effect of temperature on 
movement of. 141-172 
Weed, fate and effect of arsenic on. 459-463 
Weekly publication, announcement of. i 
Weir, J. R., and Hubert, E. E. (paper), A 
Serious Disease in Forest Nurseries Caused 
by Peridermium filamentosum. 781-785 
Weir— 
box- 
effect of— 
shape on discharge of. 1129 
size on discharge of. 1129 
discharge formula for. 1135-1136 
new irrigation. 1127-1143 • 
advantages of. 1143 
construction of. 1141-1143 
discharge from. 1137-1139 
experimental and computed discharges 
from. 1139-1141 
use of. 1141-1143 
notch— 
Cipolletti, flow through. 1073-1082 
circular, flow through. 1088 
edges, requirements of, for free flow.. 1088-1090 
flowthrough. 1051-1113 
effect of contractions upon. 1091-1098 
measurement of head in. 1090-1091 
relation of notch length to. 1098-1101 
rectangular, flow through. 1063-1073 
Weir—Continued. Page 
notch—continued. 
submerged, flow through. nor-1106 
triangular, flow through. 1083-1088 
Wentworth, E. N., and Aubel, C. E. (paper), 
Inheritance of Fertility in Swine. 1145-1160 
Wheat. See Triticum. 
Wilson, views on perpetuation of Phytophthora 
infestans .. 97 
Wilt, bacterial, of cucurbits, dissemination 
of. 257-260 
Withers, W. A., and Carruth, F. E. (paper) 
Gossypol, the Toxic Substance in Cotton¬ 
seed Meal. 261-288 
Wolf, F. A. (paper), Further Studies on Pea¬ 
nut Eeafspot. 891-902 
Woodworth, C. W. (paper), A New Spray 
Nozzle. 1177-1182 
Zea mays — 
absorption of boron by. 884 
composition of seeds and seedlings of. 456-457,1162 
effect of— 
alkali salts on growth of. 23ff 
green manure on germination of. 1162,1165-1166 
translocation of mineral constituents of.. 455-457 
occurrence of manganese in. 353 
resistance of, to alkali. 22-24 
Zinnsmeister, C. L., and Rosenbaum, J. 
(paper), Altemaria panax, the Cause of a 
Rootrot of Ginseng. 181-182 
