1919] 



INDEX OF SUBJECTS. 



959 



Grapes — Continued. 



sap acidity, relation to disease resist- 

 ance, 740, 844. 



spraying, 349, 751. 



tliysanopterous pest, 455. 



varieties, 844. 



wild, northern and southern strains, 

 tests in Minnesota, 144. 



wine, drying, 651. 



(See also Vineyards.) 

 Grape-shoot silage as source of alcohol and 



tartaric acid, 618. 

 Grapevine — 



Otiorhynehus, studies, 59. 



pyralid, remedies. 59. 

 GraptoUtha spp., studies, 357. 

 Grass — 



for seed, fertilizer experiments, 228. 



mixtures, drilling r. broadcasting, 230. 



mixtures for lawns, inspection, N.J., 40. 



mixtures for seeding waste land, 231. 



mixtures, tests, 229. 



pests in New York, 160. 



phosphates for, 426. 



root beetle in Australia, 666. 

 Grasses — 



American, axillary eleistogenes, 635. 



analyses, Wyo., 333. 



culture experiments, Can., 528. 



distribution in grazing areas of United 

 States, 471. 



effect on soil nitrate content, Mo., 623. 



forest, of India, 522. 



from different altitudes, nitrogen con- 

 tent, Wyo., 333. 



hay and pasture, varieties, 334. 



native, for hay and silage, Alaska, 30. 



new, notes, Fla., 528. 



of- Mexico, 821. 



of South Africa, 529. 



range, of North Dakota, 434. 



(See also Meadows, Pasture and speci- 

 flc grasses.) 

 Grasshoppers — 



control, 251, 252, 754 ; Ind., 162. 



differential, control, Ariz., 355. 



notes, Mont., 57. y 



(See also Locusts.) 

 Grassland — 



climax formation, 634. 



management, 367. 



old, improvement, 826. 



(See also Meadows and Pastures.) 

 Gravel for roads. (See Road materials.) 

 Gravity acceleration tables, 808. 

 Grazing — 



deferred and rotation system, Kans., 

 34. 



land in United States, U.S.D.A., 693. 



research, plant indicators In, 327. 



(See also Range management.) 

 Grease traps, construction, 5S9. 

 Great tit, food habits, 454. 

 Green — 



apple bug, remedies, 756. 



bug on coffee, fungiia enemies, 59, 



bug oa cott"u, 251. 



Green — Continued. 



capsid, notes, 354. 



manures, effect on seed germination, 

 523. 



manures, effect on soil bacteria, Ga., 

 130. 



manures, pitting and rotting, 721. 



manures, use, guide for, 626. 



manuring experiments, Del., 136 ; N.J., 

 19. 



manuring for soils of India, 814. 



manuring with cowpeas. Mo., 624. 



soldier bug in citrus groves, 355. 

 Greenhouse — 



cockroach, studies, Conn. State, 158. 



leaf-tyer, studies, 460. 



mealy bug, notes, 756. 



plants, aerial fertilization with carbon 

 dioxid, Vt., 833. 

 Greenhouses — 



construction, 339. 



fumigation experiments, N..T., 58. 



heating, 587. 



.soil sterilization experiments, 339. 

 Greensand as source of potash, N..J., 23. 

 Ground squirrels in California, 353. 

 Growth — 



and hydration, defining physical con- 

 stants, 27. 



as affected by inbreeding, 865, 866. 



availability of energy for, 769. 



in organisms, studies, 25, 26, 132. 



of tadpoles, nutrition studies, 468. 



relation to hypophysis, 270. 



studios with white mice, 766. • 

 Growth-promoting properties — 



of baker's yeast, 169. 



of cabbage, 167, 168. 



of lactalbumin, 465, 466. 



(See also Vitamins.) 

 Oryllotalpa of Java, 847. 

 Oryllus — 



ahbreviatus, control, S.Dak., 251. 



domesticus:. (See Cricket, house.) 

 (Juano — 



of Guano Islands, South Africa, 627. 



Peruvian, fertilizing value, 218. 

 Guarana, caffein content, 412. 

 Guinea pigs, domestication in Peru, 869. 

 (iummosis, studies, Ga., 49. 

 Gums — 



and resins, handbook, 110. 



chemistry of, progress, 614, 801. 

 Oij 111)1 nsporangiunt junlperi virginiancB, 



studies, W.Va., 53. 

 Oyninosporangiuni, studies, 152, 746. 

 (Jypona north of Mexico, review, 456. 

 Gypsum — 



nnnnonia-flxiug capacity, 521. 



effect on potash solubility, 126. 



fertilix.iiig value, 427. 

 Habrocytus similUmus n.sp., description, 64. 

 llabi-ouemic conjunctivitis, 84. 

 lludvnu (ileracea, control, 339. 

 HiviiiittdbUi Kcriata. (See Ilorn-fly.) 

 HeemuDcbosi.s in sheep, 873. 

 Halazone as water disinfectant, 583, 



