INDEX 



405 



for study in grazing course, 365; 

 forage preferences of, for study in 

 grazing course, 367; forage require- 

 ments of, for study in grazing course, 

 371, 387; on winter range, study of, 

 in grazing course, 389. 



Host plants, 281. 



Huckleberry family, for study in graz- 

 ing course, 369. 



Humus, accumulation of, 105; soil 

 rich in, retains moisture, 105; soil 

 that contains Uttle, 115; removal of, 

 171; percentage of, in eroded and 

 in noneroded soil, 184; preserva- 

 tion of, 191; added to soil by de- 

 composition of vegetation, 221; de- 

 stroyed by fire, 227, 228; destroyed 

 by excessive grazing, 235. 



Husbandry, animal, auxiliary subject 

 in study of pasture management, 

 362; application of, 363; winter- 

 range, study of, in grazing course, 

 388; general instruction in grazing 

 coordinated with department of, 390. 



Hydrocyanic acid, formed in Johnson- 

 grass, 144. 



Hymenoxys floribunda, indicator plant, 

 129; poisonous to stock, 276; habit 

 of growth, (fig.) 278. 



H\T3odermic injections, for larkspur 

 poisoning, 258. 



I 



Idaho, cattle and sheep grazed under 

 permit, 21; study of effect of graz- 

 ing on timber reproduction, 200; 

 investigations in, for study in graz- 

 ing course, 376. 



Ignition, loss on, in eroded and non- 

 eroded soil, 184. 



Implements, cultural, 48; brush har- 

 row, (fig.) 49; wooden-peg "A" har- 

 row, (fig.) 49; for study in grazing 

 course, 372. 



India, grazing practice on forests, 26. 



Indian bean, name for lupine, 266. 



Indicator plants, asters, (fig.) loi; 

 t>'pe stages, 107; use, 127; method 

 of detecting improvement or de- 

 pletion, 127; reliable indicators, 128; 

 for study in grazing course, 375. 



Indicators, of moderate stages of over- 

 grazing, 107. 



Injury, mechanical, by plants, 284; 

 prevention, 288; seasonal, to timber- 

 lands, for study in grazing course, 

 376. 



Inspection, of range and farm pasture, 



T,^y, points to be considered, 334; 

 study of, in grazing course, 378. 



Investigations, of methods of crop- 

 ping, 93 ; of effect of grazing on tim- 

 ber reproduction, results of, 198; 

 of injuries from sheep grazing, 199; 

 on Payette National Forest, 200; 

 conclusions based on, 211; on Na- 

 tional Forests, 376; on farm wood- 

 lands, 376; application of, 376. 



Irrigation, of range and pasture lands, 

 4; in Great Basin, 8; dependent on 

 watersheds of National Forests, 172. 



J 



Tack rabbits, study of, in grazing con- 

 trol, 377. 



Jacquot, A., on effect of fires on veg- 

 etation, 229. 



Jardine, J. T., essentials of efficient reg- 

 ulation in grazing, 213; methods 

 proposed by, form basis for Forest 

 Service grazing-reconnaissance work, 

 311; on acreage required, for cattle, 

 331, for sheep, 2,2,2,- 



Johnsongrass, for hay and pasture com- 

 bined, 132; habit of growth, 144; 

 value for hay, 144. 



Juncus, study of, in grazing course, 

 367, 368. 



Junegrass, name for Kentucky blue- 

 grass, 93, 132; indicator plant, 129; 

 host plant, 281; for study in grazing 

 course, 368. 



Juniper, palatable to goats, 211; in 

 woodland type, (fig.) 316, 317. 



Kafir corn, supplemental feed, 34. 



Kalmia angustifolia, poisonous species, 

 274. 



Kalmia lalifolia, poisonous species, 274; 

 habit of growth, (fig.) 276. 



Kansas Experiment Station, study of 

 acreage per cow unit, 332. 



Knotweed, indicator plant, 128. 



Knotweed, Douglas, in first or early 

 weed stage, 115, (fig.) 116; on bed 

 ground, (fig.) 121; on range grazed 

 annually, (fig.) 122; on protected 

 plot, (fig.) 123, 124; on protected 

 plot and on unprotected range, 125; 

 indicator plant, 128; growth after 

 burning brushland, 226; annual 

 plant, 324. 



Koeleria, host plant, 281; for study 

 in grazing course, 368. 



Koeleria cristata, indicator plant, 129. 



