INDEX 



399 



Crepis acuminata, indicator plant, 129; 

 on chart plot, (fig.) 342. 



Crook County Sheep-Shooting Asso- 

 ciation, 14. 



Cropping, tests, 63; effect on vege- 

 tation, (figs.) 65; deferred, vs. year- 

 long grazing, (fig.) 77; study of 

 methods, 93. 



Cross-breeding, purpose of, 387. 



Crown fire, 234. 



Curbing, for springs, 298; for wells, 304. 



Curricula, of agricultural colleges, in- 

 clusion of courses on pasture and 

 Hvestock management in, 360. 



Cymopterus, false, in foxglove-sweet 

 sage-yarrow cover, 114; on eroded 

 and on noneroded pasture, (fig.) 118; 

 indicator plant, 129. 



Dadylis glomerata, habit of growth, 

 (fig.) 142. 



Dandelion, on range grazed annually, 

 (fig.) 122; on protected plot, (fig.) 

 123; on protected plot and on un- 

 protected range, 125. 



Dandelion, mountain, indicator plant, 

 129. 



Dayton, WiUiam A., study of effect of 

 grazing on timber reproduction, 198. 



"Dead lines" in conflicts over range 

 territor>% 15. 



Death camas, 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 symptoms of 

 sheep poisoning by, (fig.) 264; sum- 

 mary of sj-mptomsand remedies, 270. 



Death cup, habitat, 283; description, 

 284, (fig.) 285. 



Death Valley, below sea level, 7. 



Delphinium, species of poisonous plants, 

 243; distribution and habitat, 255; 

 for study in grazing course, 370. 



Delphinium Barbeyi, on range grazed 

 annually, (fig.) 122; on protected 

 plot, (fig.) 123; species of tall lark- 

 spur, 256; habit of growth, (fig. 

 frontis.). 



Delphinium bicolor, distribution and 

 habitat, 256. 



Delphinium cucullatum, species of lark- 

 spur, 256. 



Delphinium Menziesii, indicator plant, 



129; distribution and habitat, 256; 

 habit of growth, (fig. frontis.) . 



Department of Agriculture, medical 

 tests by, 263; studies of grazing 

 capacity by Bur. of Plant Industry, 

 328. 



Depletion of forage crop, 104. 



Denuded or depopulated plots, 349; 

 for study in grazing course, 385. 



Desert range, for sheep grazing, (fig.) 7. 



de Vaca, Cabeza, fires set by Indians, 

 217. 



Devil's darning needle, mechanically 

 injurious, 288; description, 288. 



Dimensions of sample plots, square 

 areas, 356, (fig.) 357; circular areas, 

 358. 



Disking, in expenments m treatmg 

 pasture lots, 94, 95; after scattering 

 seed, 102. 



Distichlis, for study in grazing course, 

 368. 



Dock, Mexican, in foxglove-sweet sage- 

 yarrow cover, 114; on bed grounds, 

 (fig.) 121; on protected bed grounds, 

 124; indicator plant, 129. 



Dogs, sheep herding by, 72; excessive 

 use of, to be avoided, 79, 335; sheep- 

 killing, for study in grazing course, 



383. ... 



Dogtown three-awn, mjunous species, 



288. 

 Draba cana, on chart plot, (fig.) 342. 

 Drag, brush, for covering seed, 41; 



terrace, (fig.) 193. 

 Drawing, mechanical, included in 



course in civil engineering, 363. 

 Drill, grain, 141. 

 Driveways, vegetation on, 119; factor 



in fire control, 234, 235; poisonous 



plants on, 248; losses from wild 



cherry poisoning, 279; revegetation 



of, for study in grazing course, 375. 

 Dropseedgrass, for study in grazing 



course, 368. 

 Drought, cause of failure of seeding 



tests, 48, 52; destruction of seed- 



Ungs due to, 72; injures forest plants, 



89; drought-enduring grasses, 138, 145; 



injury to tree production by, 199. 

 Dry farming, in Great Plains, 6; in 



Great Basin, 7; in the Southwest, 8; 



success of, 10; on native western 



range, 39. 



E 



Ecology, auxiliary subject in study of 



pasture management, 361. 

 Elder, mountain, in browse type, (fig.) 



315- 



