INDEX« 1123 



Page. 



Great Plains, vegetation study 126 



See also Dry land; Irrigation. 



Green bug, control work 640 



Paris. 5ee Paris green. 



Greenhouse, Department, operation and experimental work 454 



Ground squirrels, destructiveness and danger to health, control, etc 81,661 



water, supply and movement, studies by Soils Bureau 74 



Guam experiment station, work, 1912 836-8.38 



crops and live stock, improvement. . . 106, 220-221 



Gulf States, freezes, warnings by Weather Bureau 271-272 



Gum tragacanth, study, and comparison with Indian gum 568 



Gypsum, use on western soils, note 183 



Gypsy. See Gipsy. 



" Habitana " c«se, reference 567 



Eabronema miiscac, transmission by house flies 383 



Hams, exports, remarks 23 



Hardwoods, sowing and planting, area, cost, etc 507-508 



Hares, Belgian, raising 660 



See also Rabbits. 



Hawaii Experiment Station, demonstration farms, cooperation 104-105, 834 



report of work, 1912 832-834 



review of work by Secretary 104-105, 219 



Mediterranean fruit fly, control 79-80 



Hawaiian Bird Reservation, report, 1912 673 



Hay crop, 1912, remarks 12 



growing, relation to tobacco growing 129 



inspection for disease infection, note 351 



making and utilizing, experimental work 440 



price, 1912 20, 21 



Health of man, insects affecting, work of Entomology Bureau 78 



public, relation of abortion among animals 170, 311, 356 



Hearings, insecticide and fungicide board 1097 



Hemorrhagic septicemia, outbreak among buffalo 365-366 



Hemp growing, Wisconsin, and preparation of fiber 418 



pulp, use for paper 416, 417 



Henequen growing, Porto Rico and Florida 417. 418 



Henshaw, Henry W., report as chief. Biological Survey, 1912 659-680 



Herbarium, forest, number of specimens and records 549 



Herbicides, use in destruction of weeds 439 



Herd, dairy, records 327-328 



Herds, tuberculosis- free, establishment, desirability 312 



Herons, North America, data publication 668 



Hessian fly, investigations 640 



Highway engineering, training by Public Roads Office 112, 209-210, 877 



Highways, maintenance, experiment by Public Roads Office 113 



See also Roads. 



Hitchens, Dr. A. P., experiments, note 364 



Hog cholera, causes, control, etc., scientific studies 168-169 



control, practical work 378-379 



work proposed 379-380 



immunity of pigs from immune sows 376-377 



investigations. Animal Industry Bureau 46-47, 374-379 



eerum, preparation and (li.'<tril>uti()ii 46-47, 169 



virus, attenuation by heat 377-378 



preservation 375-376 



Hogs, feeding on buttermillq, note 333 



production, remarks 323 



See also Swine. 



Holstein cattle, breeding work. North Dakota 44, 320 



Home economics, assistance by department 223-224 



Homesteads, National Forests, law, character of land, claims li.sted, etc 481-486 



Honev, comb, production methods 654 



Honolulu laboraton,', work on oriental imports, drugs and food 582 



Hookworm, transmission, di.stril)iition, etc., studies 172 



Hop aphis, control methods, etudiea 643 



