1917] 



INDEX OF SUBJECTS. 



953 



Insects— Continued. 



destruction by heat 197 



entomophagous, terminology 53 



entomophagous, use in agriculture 754 



forest. (See Forest insects.) 



greenhouse, N.J 152 



injurious — 



in Barbados 252 



in British Guiana 252, 853 



in Delaware 540 



in Fiji 252 



in Great Britain 853 



in Illinois 853 



in India 355, 653 



in Jamaica 457 



in Maryland 854 



in New Jersey 252 



in New Jersey, N.J 854 



in New York 855 



in Nyasaland 153 



in Ontario 456 



in Porto Rico 252 



in Scotland 252 



in South Africa 653 



in' Tasmania 846 



in West Virginia 653 



manual 355 



notes, Alaska 457 



notes, N.Y.State 549 



to alfalfa 152 



to citrus fruits 754 



to cranberries. Mass 54 



to fruit trees 853, 856 



to onions 152 



to orchids 555 



to peaches 141 



to pine and fir in Sweden 853 



to potatoes, Iowa 550 



to rubber 754 



to sugar cane 654 



to tea 355 



to tobacco 355 



treatise 236 



meadow, notes 297 



microparasites of 355 



of New Jersey 152 



parasitic, in Canada 457 



penetration by gases 251 



photographing, Nev 53 



relation to animal diseases 479 



relation to cucumber mosaic disease 350 



relation to fire blight 351 



relation to rice gwa-bo 448 



relation to poliomyelitis 354 



scale. (See Scale insects.) 

 (See also specific insects.) 



Insurance, mutual, in Illinois 791 



International — 



catalogue of general biology S66 



dairy congress, report 473 



live stock exposition 199 



Intestinal flora, relation to diet 664, 665 



Intestine, large, enzyms of. 366 



Inulo-coagulase, notes 127 



Invertase in cane sugar 802 



lodin— Page. 



determination in organic matter 561 



in food materials 561 



lodoantipyrln, periodids of 313 



Iowa — 



College, notes 499 



Station, notes 499, 694 



Ips pini, studies, N.Y.Comell 554 



Iris, breeding 142 



Iron— 



and manganese, antagonistic action on 



wheat 731 



assimilation by plants 633 



assimilation by rice, U.S.D.A 431 



determination in soils 814 



effect on plant growth 520 



immobility in plants, U.S.D.A 128 



salts, toxicity in soils 515 



sulphate for cottonseed meal-fed pigs. 



Miss 471 



Irrigation — 



canals, seepage losses 685 



concrete pipe for 583 



effect on salts and nitrates in soUs, 



U.S.D.A 816 



field laboratory at Denver, Colo 583 



in Anam, French Indo China 89 



in Canada 682 



in Colorado 582 



in Florida, U.S.D.A 784 



in Montana 486 



in Morgan Hill area, California 885 



in Navajo and Hopi Indian reservations. 485 



in Oregon 283, 485, 583 



in Rogue and Willamette river vallejs. . 282 



in Turkestan 886 



laws in Idaho 384 



overhead, tests 583, 640 



pipe. (See Pipe.) 



plants , consumption of electric energy by . 184 



project in Milk River, Mont., cost data. . . 89 



pumping, cost, Wash 88 



pumping plants, tests 487, 888 



relation to apple bitter pit 50 



spray, U.S.D.A 887 



utilization of small waterfalls for 89 



water. (See Water.) 



water wheel for 185 



with sewage 183 



wooden flumes for 586 



Isaria sp. on root weevil larvae 153 



Isodromus abnormicornis n.sp., description.. 556 



Isosoma — 



grande, notes 59 



orchidearum, notes 252 



vaginicolum n.sp., description 59 



Ives tint photometer, description 207 



Ixodes Uolocyclus, destruction 678 



Jacks — 



in Wisconsin, Wis 473 



pure-bred, in Montana, Mont 4Y0 



Japanese cane. (See Sugar cane.) 



Jassoidea of Tennessee 654 



Jewish agricultural and industrial aid society . 894 



