INDEX 



397 



Bursa, growth after burning brush- 

 land, 226. 



Bursa bursa-pastoris, on chart plot, (fig.) 

 342. 



Buttercup, familj-, poisonous plants, 

 243 ; for study in grazing course, 369. 



Butterweed, sign of overgrazing, 106; 

 indicator plant, 129. 



Cacti, mechanically injurious, 284. 



Caffeine, for larkspur poisoning, 258. 



Calamagrosiis, on burned-over forest 

 range, (fig.) 46; for study in grazing 

 course, 368. 



Calicobush, name for mountain "lau- 

 rel," 274, (fig.) 276. 



California, sheep and cattle grazed 

 under permit, 21; test of deferred 

 grazing, 80; study of effect of graz- 

 ing on timber reproduction, 198. 

 Bell's History of, on causes of forest 

 fires, 218; investigations in, for study 

 in grazing course, 376. 



Camas, death, poisonous, 242; when 

 to graze, 245; method of eradicating, 

 247; description, 261, (fig. frontis.); 

 distribution and habitat, 261; poi- 

 sonous species, 261; losses due to, 

 262; poisonous parts, 262; amount 

 required to cause death, 263; symp- 

 toms of poisoning, 263; remedies, 

 263; characteristic sheep poisoning, 

 (fig.) 264; summary of symptoms 

 and remedies, 270. 



Caprifoliaceae, for study in grazing 

 course, 369. 



Capriola, for study in grazing course, 

 368. 



Capriola Dactylon, introduced from 

 Europe, 135; habitat, 135, 137; 

 habit of growth, (fig.) 136, 137. 



Carex, study of, in grazing course, 367, 

 368. 



Carpetgrass, easily killed by fire, 224, 



237- 

 Carrier, LjTnan, investigation of meth- 

 ods of cropping and treating pasture, 



93- 



Cascade Mountains, study of injury to 

 forest growth by sheep grazing on, 

 199. 



Cattle, thrive on winter annual plants, 

 8; number grazed on National For- 

 ests, 21; increase on National For- 

 ests from igog to 1919, 22; breed 

 improved by lease plan, 34; stocker, 

 grazing by, 97: injury to yellow pine 

 reproduction in Arizona and New 



Mexico, 202; effect of browsing on 

 reproduction of aspen, 206; number 

 grazed on National Forests in 1921, 

 232; losses due to poisoning, 241; 

 driving and herding, 248; losses from 

 larkspur poisoning, 256; losses from 

 water hemlock poisoning, 265; water 

 requirements, 296; most valuable 

 pasture lands for, 355; forage prefer- 

 ences of, for study in grazing course, 

 367; forage requirements of, for 

 study in grazing course, 371, 387; 

 management of, for study in grazing 

 course, 382; cost of production, for 

 study in grazing course, 382; on 

 winter range, study of, in grazing 

 course, 389. 



Ceanothus, effect of fire on, 226. 



Cedar, incense, injury to, by various 

 agencies, 199; injury to, by stock, 

 foj- study in grazing course, 376. 



Cellulose, indigestible substance, 3. 



Cement, for curbing springs, 298; 

 troughs, 301. 



Cercocarpus, sign of overgrazing, 106; 

 effect of fire on, 226. 



Chamaencrion, growth after burning 

 brushwood, 226. 



Chaparral land, effect of burning on, 

 225. 



ChapUne, W. R., on goat grazing, 210. 



Chart plot, 341; vegetation on, (fig.) 

 342; pantograph for mapping, (fig.) 



345- 



Chemistry, auxihary subject in study 

 of pasture management, 361; ap- 

 phcation of, 363. 



Chenopodiaceae, for study in grazing 

 course, 369. 



Chenopodium album, in first or early 

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

 ground, (fig.) 121; indicator plant, 

 128. 



Cherry, choke, natural invader of cut- 

 over or fir t>'pe, 89; poisonous to 

 stock, 279, (fig.) 281. 



Cherry, wild, poisonous to stock, 279, 

 (fig.) 281. 



Chlorideae, for study in grazing course, 

 368. 



Chrysothamnus lanceolatus, appears in 

 destruction of wheatgrass cover, 

 108; indicator plant, 129. 



Cicuta, poisonous to livestock, 243; 

 description, 264; distribution and 

 habitat, 264; losses from, 265; poi- 

 sonous parts, 265; S3Tnptoms of poi- 

 soning, 265; remedies, 266; control 

 and prevention of losses, 266; for 

 study in grazing course, 370. 



