962 



EXPERIMENT STATION RECORD. 



[Vol. 41 



House fly — Continued. 



relation to hog cholera, 578, 



remedies, 662. 

 Household — 



budget and accounts, teaching, 494. 



devices, recipes, etc., 699. 



labor-saving appliances, treatise, 692, 



thrift, lessons, 66, 



(See also Home economics,) 

 Huanacu, domestication in Peru, 869. 

 Hufenandia n.spp,. descriptions, 740, 741. 

 Hummingbirds, keeping in captivity, 56. 

 Humus — 



determination, 80.3. 



effect on chemical reactions in soil, 

 720. 



fertilizers, studies, 722, 



nitrate formation in, 125. 



soils of Sweden, classification, 511. 

 Humus-forming plants, H-ion concentra- 

 tion, 19. 

 Humus-poor soils of Sweden, classification, 



510. 

 Hunting, notes, 743, 

 Hyacinth bean, specific names, 523, 

 Hyalopeplus smaraydinus n,sp., description, 



847. 

 Uyalopterus aritndinis — 



in South Dakota, 59. 



studies, U.S,D,A„ 163. 

 Hybridization — 



asexual, through grafting, 522. 



evolution by, 223. 



increased development from, hypothe- 

 sis, 747. 



of pheasants and Golden Campines, 

 472. 



(See also Breeding.) 

 Hybrids, twin and constant, in Drosophila, 



867. 

 Hydraulic fills, determining pressures, 582. 

 Hydrocyanic acid — 



in Burma beans, 633. 



in Cystopteris alpina, 633. 



liquid, for fumigation, 164, 551, 754, 

 757; Cal., 550. 



liquid, properties, Cal., 502. 

 Hydrogen — 



carbon monoxid determination in, 312. 



peroxid, catalytic decomposition, 409. 



reaction with carbon dioxid in soils, 

 720. 

 Hydrogenation, catalytic, treatise, 310. 

 Hydrogen-ion concentration — 



determination, 11, 503. 



voltage conversion tables and bibliog- 

 raphy, 204, 

 Hydrophobia. (See Rabies.) 

 Hygrometrical tables, 808. 

 Hylemyia — 



cereaUs, notes, Mont., 57. 



coarctata, notes, 847. 

 Hylurgops pinifex, notes, 758. 

 Eymenolepis carioea, life history, 881. 

 Hymonoptera — 



of Minnesota, 57. 



parasitic, now, 63, 463. 



Hypcna humull, studies, N.Y.Cornell, 161. 

 Hyperglycemia, observations on, 304. 

 Hyperimmunity, destructive, in rabbits, 186. 

 Uyphantriu vunea. (See Webworm, fall.) 

 Hypochlorite solutions — 



assay of, 715. 



isotonic, for water sterilization, 583. 



(See also Dakin's solution.) 

 Hypoderma bovis, life history, 280. 

 Hypophysis in the rat as affected by in- 

 anition and refeeding, 270, 

 Hyposuter fiifjitUus paciflcus n.foi-m, de- 

 scription, 261. 

 Ice cream — 



as factor in dairying, 774. 



bacteriological studies, Iowa, 279, 



colloid chemistry of, 310. 



inspection, Me,, 171. 

 Icerya purchasi. (See Cottony cushion- 

 scale.) 

 Ichneumonoidea — 



families and subfamiles, 360. 



new, 63, 261, 

 Idaho — 



Station, report, 299. 



University and Station, notes, 199, 898. 

 Idiocerus co;inatus in New Jersey, 549. 

 Ileum, H-ion concentration, 765. 

 Ilex as source of cafifein, 409. 

 Illinois — 



Station, report, 198. 



University and Station, notes, 599. 

 Immune bodies, normal, influence of desic- 

 cation on, 874. 

 Immunity — 



antistreptococcic, studies, 376. 



" destructive," in rabbits, 186. 



in plants, 656. 



production as affected by nutrition, 

 574. 



theories, 186. 

 Immunization — 



studies, 576. 



therapeutic, new prospects in, 187. 



(See also Anthrax, Hog cholera, etc.) 

 Immunizing sera, anaphylactoid poisoning 



by, 185. 

 Imperata spp. as paper-making material, 



.-..^2, 732. 

 Inbreeding — 



effect on growth curve in white mice, 

 766, 



studies, 267, 864, 

 Indian meal moth on dried fruit, 665, 

 Indiana Station, notes, 496, 

 Indicator — 



beet-extract, 112. 



papers, preparation and use, 11, 503, 

 Indigo — 



culture in India, 522, 529, 



from Ivonchocarpus, 734. 



industry, 233. 



soils of IniUa, 516, 814, 816. 

 Infants — 



care of in rural Wisconsin, 794. 



feeding, 365, 561, 679, 859, 860. 



metabolism, 761. 



