952 



EXPERIMENT STATION RECORD. 



[Vol. 36 



House fly— Page- 

 breeding habits 57 



dispersion under city conditions 56 



food preference, N.J 855 



overwintering 553 



relation to helminthic diseases 657 



relation to leprosy 554 



remedies 656 



response to ammonia and other sub- 

 stances, N.J 156 



Household mechanics, treatise 891 



Huckleberries, breeding experiments, Alaska. 443 



Humic acid, notes 622 



Humiflcation, notes 622 



Humin— 



formation 412 



nitrogen of protein hydrolysis, origin 108 



Humogen. (See Peat, bacterized.) 

 Humus — 



determination in soils 614 



formation 115 



relation to soil fertility 723 



role in plant nutrition 31 



studies 512, 815 



sugar, preparation, Tex 625 



Hunger control in health and disease, trea- 

 tise 363 



Hurricane tracks, 1912-1915, U.S.D.A 419 



Hurricanes, notes, U.S.D. A 19, 719 



Hydraulic rams, types of 89 



Hydrazin — 



effect on blood fat and blood sugar 164 



sulphate, effecton hemolytic reaction. . . 878 

 Hydrochloric acid, effect on hemol3rtic reac- 

 tion 878 



Hydrocyanic acid, determination in beans. . . 714 



Hydro-electric power, treatise 783 



Hydrogen- 

 electrode potential as affected by press- 

 ure 503 



ionconcentration, determination 13, 111 



Hydrometeors, classification, U.S.D. A 19 



Hydrophobia. (See Rabies.) 



Hydroquinone, utilization by plants 329 



Hylemyia antiqua , notes. Can 657 



Hymenochxte noxia, notes 347, 746, 846, 851, 852 



Hymenoptera— 



American, notes 261 



chalcidoid, notes 60 



description 759 



new, notes 260 



predacious and parasitic, notes 456, 461 



Hyoscyamus niger oil, analyses 803 



Hyperaspis binotata larva, description 658 



Hypochlorites, action on proteins 877 



Hypochnui sotowi, studies 847 



Hypoderma bovis — 



notes 456 



studies 482 



Hypsometers, tests 144 



Hyssopus officinalis, oil of. 803 



Ice — 



box, homemade, description 687 



cream binders and fillers, effects of, Va. . 78 



cream, manufacture, Cal 177 



cream , quality as affected by gelatin 875 



cream recipes, Va 79 



Ice— Continued. Page. 



cream standards 561 



harvesting 687 



houses, construction 390,687 



Icerya purchasi. (See Cottony cushion-scale.) 



Ichneumon flies, new 259 



Ichneumonidae in Quebec 461 



Idaho Universitj', notes 796 



Illinois University, notes 694 



Immunity— 



produced by intravascular injections 575 



reactions, relation to specific precipita- 

 tion 478 



Immunology, colloidal chemistry in 178 . 



Imperata — 



cylindrica , use in paper industry 809 



sp. as a green manure 324 



Imphee, culture experiments 332 



Incubation — 



notes, W.Va 871 



temperature experiments , Ind 770 



Incubators- 

 cost of operating, Can 72 



operation, Cal 571 



IncuTvaria capitclla, notes 754 



India rubber. (See Rubber.) 



Indian summer, notes, U.S.D. A 419 



Indiana Station — 



notes 98, 694 



report 795 



I-ndigofera spp. as a green manure 324 



Infants- 

 feeding 559 



feeding, Vt 559 



growth 263 



metabolism 763 



milk for, Vt 558 



nutritional disturbances 865 



Inflammations , nonspecific, of joints 676 



Influenza, equine — 



causative agent 85 



pectoral form -. 182 



Inga, revision 32 



Inheritance. (See Heredity.) 

 Inosit— 



phosphoric acid of cottonseed meal 299 



utilization in the animal organism 365 



Insect- 

 cages, wire, shading effect, U.S.D.A 455 



metabolism influence of atmospheric 



moisture on, N.J 855 



Insecticide- 

 laws in United States, U.S.D.A 39 



new, description 252 



Insecticides- 

 analyses 744 



effect on flowering plants 733 



inspection in Maine 467 



inspection in Ohio 744 



preparation and use, Tex 53 



(See also specific forms.) 

 Insects- 

 air-conditioning apparatus, Kans 152 



beneficial in Illinois 853 



control by parasites and predacious ene- 

 mies 456 



destruction by cyanid gas 456 



