INDEX OF SUBJECTS. 



869 



rage. 

 Invertase— Continued . 



determination in various su1)stances 131 



enzym, rate of destruction, U.S.D.A 411 



Invertebrates of Darien and Ecuador 752 



role of, in disease transmission. 786 



lodids, relation to detection of nitrates 213 



Iowa College, notes 98, 197, 496, 597, 696 



Station, notes 496 



Iridomyrmcx humilis — 



destructive to sorghum midge, U.S.D.A. 364 



protection to mealy bugs. La 6G1 



Iron and aluminum phosphate, residual 



effects 324 



arsenate, analyses, Oreg 466 



Bordeaux, effect on apples, U.S.D.A .. 651 



corrosion as affected by soil bacteria . . 318 



determination 113 



in milk 308 



effect on olive oil 112 



in normal human organs 172 



phosphate, solubility, Tex ' . 423 



protoxid, effect on soil fertility 623 



removal from water for dairies 518 



sesquioxid, effect on soil bacteria 231 



sulphate — 



as a seed disinfectant 248 



destruction of weeds by 545, 732 



Can 339 



effect on potato formation, Ariz . . . 627 



soil acidity 320 



fungicidal value 47 



relation to apple bitter pit 652 



tests. 111 60 



sulphid, effect on apples, U.S.D.A 651 



Irrigation- 

 agricultural aspect 601 



effect on rubber increase in guajoile 130 



experiments in Colorado, U.S.D.A 140 



India 33 



western Oregon, U.S.D.A. 393 



Wyoming, U.S.D.A 189 



free publications on 495 



in Colorado, U.S.D.A 590 



Egypt and Sudan 594 



South Africa 32 



Willamette Valley, U.S.D.A 419 



methods, U.S.D.A 189 



problems in America, U.S.D.A 190 



Columbia River Valley, 



U.S.D.A 435 



projects, U.S.D.A 419 



relation to precipitation and 



stream flow, U.S.D.A 312 



' removal of alkali by 714 



use of windmills in, U.S.D.A 395 



water. (See Water.) 



Isocoma coronopifolia, notes, U.S.D.A 137 



tritici, destruction by mites, U.SJJ.A. 57 

 Isothermal layer, relation to earth's tempera- 

 ture, U.S.D.A 311 



Italian rye grass, analyses 771 



Itch, straw, notes 565 



Ivory nut of Abyssinia 542 



Ixodes xqualis n.sp., description 565 



Ixodoidea of Brazil, treatise 465 



Page. 



Jackals, new piroplasm in blood of. 792 



Jacks, legislation concerning, U.S.D.A 75 



Jadoo fiber, composition 26 



Jam, compound, misbranding, U.S.D.A 769 



determination of salicylic acid in 709 



misbranding, U.S.D.A 769 



Japonia quercus n.g. and n.sp., description. . . 740 



Jassidae, notes 757 



Jaundice in fowls, studies 792 



malignant. (See Piroplasmosis, ca- 

 nine.) 



Jays, eating of moth eggs by 560 



relation to fruit industry in California, 



U.S.D.A 555 



Jellies, determination of salicylic acid in 709 



Jelly, currant, misbranding, U.S.D.A 568 



fish, analyses 325 



misbranding, U.S.D.A 769 



Johnc's disease, studies, U.S.D.A 84,85 



Johnson grass, analyses 232 



culture 232 



food plant of mealy bug. La. . 660 



insect affecting, U.S.D.A 364 



Juar, water requirements in India 332 



Juncus effusus, culture, Hawai i 233 



Juncus root disease, notes 50 



Jute, culture in Cuba 334 



India 729 



fertilizer experiments 433, 729 



refuse, fertilizing value 433 



Kafir com, black line, analyses 771 



chops, analyses, Tex 572 



fertilizer experiments 33 



meal, analyses, Tex 572 



notes 134 



insect affecting, U.S.D^ 364 



varieties 33 



Kainit, analyses 326 



effect on animals 582 



frost prevention 516 



percolation of water in soils . 121 



temperature of manure 625 



fertilizing value 234 



Pa 634 



Kale, analyses 175 



cooperative experiments in Cape Col- 

 ony 730 



culture in Washington, Wash 531 



irrigation experiments, U.S.D.A 394 



thousand-headed, culture, Orcg 143 



experiments 432 



varieties, Can 334,531 



Kansas College, notes 98, 197, 497, 597, 696, 800 



State Agricultural College, history. . . 493 



Station, notes 98,197,497,597,800 



Kaolin, effect on soil productivity 320 



Kawakamia cyperi, description, U.S.D.A 445 



Kcas, book on 657 



Kelp, ground, analyses, Can 311 



Kentucky Station, financial statement 95 



notes 98,197,597 



report of director 95 



Unlversitj', notes 98, 197, 597, 697 



Keratitis, enzootic ulcerous, in dog.s 392 



Kermes himalayensis, scale insect affecting 756 



