July i-Sept. 30,1918 
Index 
617 
Page 
Hen- 
effect of cottonseed products on- 
egg production of. 441-442 
growth of. 43^-442 
Hesperethusa cremdata, resistance to Citrus- 
canker. 341 
Hoffer, G. N. t Johnson, A. G., and Atanasoff, 
D. (paper): Com-Rootrot and Wheatscab. 611-612 
Holcus — 
halepensis resistance of seeds to desiccation 527-532 
sudanensis, resistance of seeds to desicca¬ 
tion. 5 2 7 “ 53 2 
Honolulu, parasitism of Tetrastichus gijfard- 606-610 
ianus, near. 606-610 
Hordeum — 
jubatum, used in experiments with Pucciaia 
graminis tritici-compacti . 117 
spp., effect of subsoiling in Great Plains on 484-504 
vulgare — 
host plant of Puccinia graminis tritici .. 117-121 
host plant of Puccinia graminis tritici- 
compacti . 113-117 
resistance of seeds to desiccation. 527-532 
Hitherto Unreported Disease of Okra, 
(paper). 207-212 
Humidity, influence on wool fiber. 285-295 
Hybrid, Citrus, overwintering of Citrus-can¬ 
ker organism in.. 523-524 
Hybrids, Citrus, susceptibility to Citrus-can¬ 
ker. 348-351 
Hydrogen-ion— 
concentration of, effect on— 
alfalfa bacteria. 329 
Azotobacter. 332 
lupine bacteria. 328-329 
Hygroscopic coefficient, relation of moisture 
content of loess soil to. 453-480 
Improved Method for Recovering Trypano¬ 
somes from the Blood of Rats for Antigen 
Purposes in Connection with Complement 
Fixation, An (paper). 573*576 
Improved Methods of Immunization against 
Symptomatic Anthrax (Blackleg) (paper) 253-262 
Indian— 
Page 
Kaupp, B. F. (paper): Mineral Content of 
Southern Poultry Feeds and Mineral Re¬ 
quirements of Growing Fowls... 12 5-134 
Kelser, R. A. (paper): Improved Methods of 
Immunization Against Symptomatic An¬ 
thrax (Blackleg). 253-262 
Kentucky bluegrass. See Poa pratensis. 
Kona orange. See Citrus sinensis. 
Kunkel, L. O. (paper): Tissue Invasion by 
Plasmodiophora brassicae. 543-572 
Tactic add, occurrence in silage. 406-408 
Lavanginae, susceptibility to Citrus-canker.. 341 
Leaf, satin. See Chrysophyllum olivaeforme. 
Leafhopper, beet. See Eutettix tenetta . 
Leaves, oak, use as bedding material. 187-190 
Legume, bacteria. See Bacteria, legume. 
Legumes, influence of reaction of soil on 
growth of. 317-320 
Lepidium virginicum, food plant of Pemphigus 
Populi-transversus . 585 
Lepidoptera, female, at light traps. 135-149 
Lesions, stem, of Solanum tuberosum— 
casual organisms of.... 213-219 
inoculations with fungi from. 214-219 
isolations of fungi from. 213-214 
Life History of Pemphigus populi-transversus 
(paper). 577-594 
Ligniera — 
graminis, tissue invasion by. 560 
junci , tissue invasion by... 560 
Lime. See Caldum. 
Limelo, resistance to Citrus-canker.,;. 350 
Limequat, resistance to Citrus-canker. 350 
Linum usitaiissimum , effect of subsoiling in 
Great Plains on. 484-504 
Loquat. See Eriobotryajaponica. 
Luginbill, P., and Beyer, A. H. (paper): Con¬ 
tribution to the Knowledge of Taxoptera 
graminum in the South. 97-110 
McCandlish, A. C., and Gaessler, W. G. 
(paper): Composition and Digestibility of 
Sudan-Grass Hay. 176-185 
McClintock, J. A., and Smith, L. B. (paper): 
True Nature of Spinach-Blight and Relation 
almond. See Terminalia catappa. 
com. See Zea mays. 
Influence of Gypsum upon the Solubility of 
Potash in Soils (paper). 61-66 
Influence of Humidity upon the Strength and 
the Elastidty of Wool Fiber (paper). 285-296 
Influence of Reaction on Nitrogen-Assimilat¬ 
ing Bacteria (paper). 317-336 
Ipomoea batatas —■ 
effect of— 
air on composition of. 273-284 
hydrogen on composition of.. 273-284 
oxygen on composition of. 273-274 
lsia isabella , female, at light traps. 136-139 
Johnson, A. G., etal. (paper): Com-Rootrot 
and Wheatscab. 611-612 
Johnson grass. See Holcus halepensis. 
Jones, T. H. (paper): Life History of Pem¬ 
phigus populi-transversus. 577-594 
Kafir. See Andropogon sorghum. 
Kamani. See Calophyllum inophyUum. 
of Insects to Its Transmission. 1-60 
McDole, G. R., and Alway, F. J. (paper): Var¬ 
iations in the Moisture Content of the Sur¬ 
face Foot of the Loess Soil as Related to the 
Hygroscopic Coeffident.453-480 
McMiller, P. R. (paper): Influence of Gyp¬ 
sum upon the Solubility of Potash in Soils.. 61-66 
Macrostphum solanifolii, agency in dissemin¬ 
ation of spinach-blight. 11-56 
Magnesium sulphate, requirement for buck¬ 
wheat in culture solutions. 151-175 
Malus syhe sir is, food plant of Euproctic chry- 
sorrhoea .. 191—192 
Man, occurrence of cocddioidal granuloma 
in. 533-534 
Mandarin orange. See Citrus nobilis deliciosa. 
Mangifera indka, food plant of Ceraiitts capi - 
fata.. . 606-608 
Mango. See Mangifera indica. 
Manure, conservation, in relation to bedding 
materials... 187-190 
