INDEX OP SUBJECTS. 



963 



Hydrocyanic acid — Fa^. 



determination ] 1 



gas, fumigation witli. Ark 653 



gas, generation by portable ma- 

 chines, Cal 191 



gas, insecticidal value, Mich 252 



gas, use against household in- 

 sects, U.S.D.A 854 



in Ortiithoptis spp 525 



Hydro-electric development In Cali- 

 fornia 682 



Hydrogen — 



electrode, description 712, 804 



peroxid, detection in milli 507 



Hydrotropism in lupine roots 223 



w-Hydroxymethylfurfuraldehyde, pro- 

 duction from carbohydrates 11 



Hygiene and sanitation, military, 



text-book 369 



Hygrometer, chemical, description 208 



Hylotrupes jimiperi n.sp., descrip- 

 tion 254 



HymenochCBte noxia, notes 442, 



540, 744, 849 

 Hymenoptera — 



parasitic, habits 363 



vespoid and sphecoid, in Guate- 

 mala 857 



Hypericum perforatum, chemistry 



and anatomy of 522 



Hypochlorite, applying automatically 



to sewage 390 



Hypochlorous acid, antiseptic ac- 

 tion 675 



Hypochnus solani and Bhisoctonia 



aolam, identity 443 



Hypocotyl, elongation, N.J 134 



Hypoderma lineatum and H. iovis, 



biology 881 



Eypomyces rubi, studies 352 



Eyponomeuta malinellus, remedies-- 355 

 Hypostena — 



sp. parasitic on sugar cane 



borer 753 



tortricis, notes 556 



Hypsometric map of Russia, U.S. 



D.A 118 



Ice — 



cream and Ices, manufacture, 



treatise 860 



cream, bacteriology, U.S.D.A 165 



cream, manufacture. Wis 859 



cream, relation to typhoid fever 



epidemics 256 



for the farm 892 



houses, construction 892 



Icerya purchasi. (See Cottony 



cushion-scale.) 

 Ichneumon flies, North American, 



revision 454 



Ichneumon Iwtus, I. canadensis, and 



/. funestus, identity 657 



Ichneumonldse — 



of Great Britain, treatise 657 



plmpllne, studies 758 



Idaein, studies 709 



Idaho — Page. 



Station, notes 797 



Station, report 795 



University, notes 495 



Idiocerus — 



gemmisimulans n..sp., descrip- 

 tion 567 



macuUpennis, notes 752 



provanchcri, biology 451 



Illinois University and Station, 



notes 96, 797 



Immunity, studies 674 



Immunology, treatise 275 



Inbreeding — 



measurement. Me 564 



variations under 864 



Incubators, temperature for, Cal 268 



India rubber. {See Rubber.) 



Indiana Station, report 795 



Indican — 



detection in urine 808 



urinary, elimination during 



fasting 863 



Indigo, culture in Bihar 35,36 



Industrial education — 



in high schools of Minnesota 195 



In New Mexico 793 



Infant — 



feeding and metabolism, trea- 

 tise 460 



metabolism and nutrition, 



studies 461 



Infants — 



and adults, digestion in 167 



diet and care 861 



feeding 258,662 



metabolism experiments 462 



newborn, physiology of 861 



protein requirement 68 



raw milk for 659 



soy bean gruel for 859 



stomachs, acidity of 167 



summer diarrhea In relation to 



heat 462 



Influenza, equine — 



pectoral form 681 



prevention 184 



Infra-red rays — 



absorption by soils 817 



absorption by soils, U.S.D.A 414 



Inheritance. (See Heredity.) 



Insect — 



parasites, introduction into 



Hawaii 548 



parasites, studies 751 



trap for refuse box, Cal 60 



traps, Illuminated, tests 851 



Insecticides — 



analyses, Mich 436 



analyses, N.J 639 



contact, mode of action, Mich 252 



Inspection, Me 40 



notes 449 



preparation and use 643, 651 



preparation and use, Colo 539, 548 



pr^aration and use, Mich 436 



