INDEX OF SUBJECTS. 



859 



Humus, Improvement of Illinois soils by.. . . 129 



in peat as atlec ted byalkalis and acids 317 



silicic acid, fertilizing value 324 



Hunterellus hookeri, notes 355 



Hunting laws in Pennsylvania 655 



flya/ommoa-^j/p^mra, transmission of piroplas- 



mosis by 68 i 



Hyalopterus aquilegix flavus, notes 154 



dactylidis n. sp., description 154 



Hybrids, guinea-cliicken, atavism in 380 



Hydrazine hydrochlorid, effect on ripening of 



dates 704 



Hydrochloric acid — 



effect on decomposition of rocks 016 



rennet 302 



methods of analysis 9 



Hydrocyanic acid — 



detedion in plants 28 



gas fumigation 465, 500 



Hawaii 58 



Mass 259 



N.H 555 



U.S.D.A 162,461 



in cassava flour 709 



mushrooms 630 



physiological function 722 



reaction with phenolphthalein 304 



Ilydracia micacea, in Canada 559 



Hydrofluoric acid, detection in foods 308 



usein protein hydrolysis.. 208 

 Hydrogen — 



fluorid, detection in presence of fluorid 



salts 707 



peroxid, use in oxydase tests 708 



sulphid, effect on discoloration in canned 



goods 514 



Hydrology of Argentina 518 



use of acoustele in 118 



Hydrophobia. (See Rabies.) 



Hygiene, alimentary, international congress. . 500 

 and demography, international con- 

 gress 500 



sanitation, pamphlet on 470 



household, notes, U.S.D.A 167 



practical, handbook^ 265 



Hygrometers, comparison 314 



Ily menibosmina pomonellx, notes 161 



Ilymenochxte noiia, notes 248 



Hymenolepsis microps, notes 189 



Hymenomyeete fruiting bodies, studies 330 



Hymenoptera of South America 159 



parasitic, development 700 



new family 57 



on olive fly, notes. . . 59 

 Hyphantria cunea. (See Webworm, fall.) 



Hypochnus solani, notes 346 



Hypoderma spp., notes 361 



Ilyponomeuta euonymella, studies 3()0 



padella in New York 465 



spp., remedies 364 



Hypophosphoric and hyphosphorous acids, 

 determination in presence of phosphorus 



acids 705 



Hystrichis elegans, studies 289 



Ice, analyses 164 



artificial, production 14 



Ice, conditions on the Great Lakes, U.S.D.A. 216 



craam, adulteration, U.S.D.A 767 



analyses 367, 767 



as affected by gelatin 467 



examination 263 



N.Dak 262 



standards, Nev 664 



substitutes, analyses 767 



thickeners, examination, Me 566 



transportation in France 640 



Ices, law concerning, in Algeria 467 



Ichneumon flies, notes, U.S.D.-'V 258 



Ichneumon koebelli n. sp., description, Hawaii. 459 



Ichneumons of Great Britain, treatise 159 



Idaho Station, notes 96, 596, 800 



University, notes 198, 596, 800 



Idiopterus nephrclepidis n. sp., description 552 



Illinois Station, notes 496 



University, notes 198, 496, 695 



Immunity, experimental, laboratory guide. . 182 



in plants, studies ; 722 



theories of, status 385 



treatise 182, 385 



Immunization. {See .-Vnthrax, Tuberculosis, 

 etc.) 



Implements, prices of, in British Guiana 372 



Inanition, metabolism in 170 



Incubation of chicks, mortality in 775 



Incubators, electric, construction 775 



India rubber. (See Rubber.) 



Indiana Station, financial statement 094 



notes 596, 695, 800 



report of director 694 



Indians, .Vmerican, diet of 552 



Indigo, culture in India 335 



Industrial arts, importance to rural commu- 

 nities 594 



education in the South 196 



wastes, pollution of streams by . . . 218 



Infant feeding, criteria and standards in 265 



problems in 266 



urine, partition of nitrogen in 669 



Infants— 



amyloly tic power of saliva in 372 



dried milk for 768 



feeding, value of mineral constituents in . 568 



food requirements 266 



foods for 564 



new-born, gastric lipase in 770 



Influenza, equine, prevalence in Queensland. 783 

 Inheritance. (See Heredity.) 



Insect common names, list 550 



ecdysis, role of air in 54 



galls in Europe 657 



injurious to apple seeds 654 



larvae as a cause of pine disease 749 



Insectary, new, description, N.H 551 



Insecticide law, federal ' 699 



materials, dealers and manufac- 

 turers, Ala.College 260 



Insecticides — 



eflect on plant growth 438 



list of substances used in making 365 



notes. Can 365 



N.J 160 



preparation and use 152, 365, 549 



