960 



EXPERIMENT STATION EECORD. 



[Vol. 43 



Hog cholera — Continued. 



V. hemorrhagic septicemia, 68.^?. 



vaccination, balancing serum and 

 virus, 884. 



vii'iis, number of days virulent, Ind., 

 384. 



virus, passage through foreign species, 

 N.Dak., 385. 

 Hog- 

 houses, design, in relation to sunshine, 

 790. 



louse, control and eradication, U.S.D.A., 

 688. 



mange, control and eradication, U.S. 

 D. A., 688. 

 Hogs. (See Pigs.) 



Hogging-down experiments, Ky., 871. 

 Hollyhock rust and mycoplasm theory, 444. 

 Home economics — 



clothing selection, 495. 



course, account keeping in, 495. 



course, child training iu, 494. 



course for State-aided high schools, 

 493. 



course in household physics, 495. 



course in mechanics, 495. 



courses, 19G, 296, 297, 396, 696, 697. 



experiment stations, 395. 



home projects in, 97, 798. 



instruction, arrangement of kitchen, 

 598. 



instruction in French West Africa, 296. 



instruction in Illinois, 695. 



instruction in New Jersey, 796. 



requirements for Idaho schools, 298. 



research projects, 595. 



schools in Massachusetts, 494. 



teachers, training, 596, 696, 697. 



textbook, 798. 



(See also Vocational education.) 

 Home — 



gardens, Ind., 395. 



project work in Indiana, 195. 



projects in home economics, 97, 798. 

 Hominy feed — 



analyses, 867 ; Ind., 69, 867 ; Ky., 873 ; 

 N.J., 69, 672 ; R.I., 672 ; Vt., 464. 



V. corn for fattening pigs, Mo., 772. 

 Homozygous, substitute for term, 867. 

 Honey — 



as carrier of intestinal diseases, Colo.. 

 163. 



invertin in, 314. 



larva feeding on, 558. 



plants, American, 259. 



prices, July, 1920, U.S.D.A., 69.5. 



production. Can., 762. 



uses in health and disease, 57. 

 Honeybees. (See Bees.) 

 Hops, resistance to mildew, 446. 

 Hornbeam, oak, woods in Hertfordshire, 



241. 

 Hornets, notes, 52. 

 Horse — 



disease, orchard, 473. 



diseases. (See specific diseases.) 



mange, control, 184, 272. 



Horse — Continued. 



spermatogensis, 670. 



stables, construction in Mexico, 290. 

 Horse-chestnuts, use in bread making, 04. 

 Horsehides, exports from Argentina, 95. 

 Horse-power on the farm, IT.S.D.A., 483. 

 Horses — 



algae as substitute for oats, 775. 



bacterial flora of eyes, 472. 



bibliography of, 173. 



broom corn seed for, 671. 



cellulose as emergency feed for, 170. 



color inheritance, 378. 



corn silage for, Ariz., 775. 



displacement by tractors, U.S.D.A., 690. 



effect of asphyxiating gas on, 82. 



feed records. Can., 775. 



feeding experiments, 871. 



in Europe, address, Kans., 674. 



judging, treatise, 697. 



long bones as affected by infectious 

 anemia, 83. 



oat straw for. Mo., 775. 



pasturing experiments, Minn., 671. 



poisoning by common bracken, 471. 



poisoning by whorled milkweed, 

 U.S.D.A., 470. 

 Horticultural — 



agent, county, functions, 643. 



conditions in Prance, 643. 



education in Netherlands, 834. 



investigations, need of coordination, 

 642. 



problems, diversity of opinions, 642. 



laws of California, 741. 



extension problems, 643. 

 Hotbeds, concrete, construction, 90. 

 House fly as carrier of disease, 558. 

 Household. (See Home economics.) 

 Housekeeping textbook, 798. 

 Humidity — 



and hot weather, U.S.D.A., 718. 



effect on critical periods of plant 

 growth, 207. 

 Humin — 



acids, chemistry and physics of, 213, 

 321. 



nitrogen of protein hydrolysis, 110, 

 111. 

 Humus — 



acids, effect on coagulation of clay, 515. 



formation in soils, 213. 

 Hurricanes, relation to storm tides, 



U.S.D.A., 511. 

 Hyacinthus orientalis, periodicity of, 729. 

 Hyalovima wgyptium, notes, 83. 

 Hybridization, plant, experiments, 535. 



(Sec also Plant breeding.) 

 Hydration and growth, studies. 428. 

 Hydraulic formula. Manning, diagram for 



solving, 477. 

 Hydrochloric acid — 



from munition plants, effect on coni- 

 fers, 347. 



production from chlorin and water, 712. 



hydrocyanic acid, determination, in 

 beans, 610. 



