412 



INDEX 



Plummer, Fred G., on forest fires, 218. 



Poa, in mixed grass and weed stage, 

 iii; often killed by fire, 223, 237; 

 for study in grazing course, 368. 



Poa compressa, habit of growth, 135; 

 forage value, 135. 



Poa Nevadcnsis, indicator plant, 130. 



Poa pratcnsis, habit of growth, 132; 

 (fig.) 133; resembles Canada blue- 

 grass, 135; on chart plot, (fig.) 342. 



Poa Sandbergii, indicator plant, 130. 



Poison, definition of term, 242. 



Poison sego, name for death camas, 261. 



Poison weed, common name for lark- 

 spur, 255. 



Poisoning, driving and herding stock, 

 as related to, 247; by loco, symp- 

 toms of, 252; locoed horse, (fig.) 

 253; locoed steer, (fig.) 253; rem- 

 edies, 253; locoed goat, (fig.) 254; 

 locoed sheep, (fig.) 254; control 

 and prevention of loss by, 254, 259, 

 266, 269; symptoms of larkspur poi- 

 soning, 257; death camas, 262; 

 s>Tnptoms, 263; water hemlock, 

 265; s>Tnptoms, 265; lupine, 267; 

 sjTTiptoms, 268; summary of symp- 

 toms and remedies, 270; milkweed, 

 273; oak, 273; "laurel," 273; 

 woody aster, 275; rubberweed, 276; 

 sneezeweed, 277; aconite, 279; cher- 

 ry, 279; fern, 281; ergot, 281; fly 

 agaric, 283; control of, for study 

 in grazing course, 370. 



Poisonous plants, cause of loss of live- 

 stock, 241; ancient knowledge of, 

 242; families of, 242; palatability 

 of, 243; methods of eradicating, 

 246; driving and herding stock as 

 related to poisoning, 247; for study 

 in grazing course, 370, 371; con- 

 trol of, in grazing course, 387. 



Polygonum avictdare, indicator plant, 

 128. 



Polygonum Douglasii, 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; indicator plant, 128; 

 growth after burning brushland, 226; 

 annual plant, 324; on chart plot, 

 (fig.) 342. 



Pomaceae, for study in grazing course, 

 369- . 



Porcupinegrass, small, in mixed grass 

 and weed stage, 108, (fig.) no; on 

 range grazed annually, (fig.) 122; 

 on protected plot, (fig.) 123; on 

 protected plot and on unprotected 

 range, 125; indicator plant, 129. 



Porcupinegrass-yellowbrush cover, 107; 

 succeeds whcatgrass cover, 108; 

 dominant species, (fig.) no; plants 

 that make up t>pe, in; destruc- 

 tion of, 113; value as forage, 113. 



Potash, as fertilizer, 99; muriate of, 

 100; in eroded and in noneroded 

 soil, 184; percentage returned to 

 soil in manure, 222. 



Potassium nitrate, as fertilizer, 100. 



Potassium permanganate, for larkspur 

 poisoning, 258. 



Polentilla filipes, indicator plant, 129. 



Prairie dog, study of, in grazing course, 

 377- 



Prescott National Forest, cost of res- 

 ervoirs on, 304. 



Primrose, evening, in destruction of 

 foxglove-sweet sage-yarrow cover, 

 114; on bed ground, (fig.) 121; on 

 range grazed annually, (fig.) 122; 

 on protected plot, (fig.) 123; on 

 protected plot and on unprotected 

 range, 125; indicator plant, 129; 

 family, for study in grazing course, 

 369- 



Profits, small operator compared with 

 large operator, 307. 



Protection plots, 355. 



Proteids, Fabaceae rich in, 151. 



Protein, content of soybeans, 159; 

 content of Japan clover, 164. 



Prunus demissa, poisonous to stock, 

 279, (fig.) 281. 



Prussic acid, in leaves of wild cherry, 

 279. 



Pseudocymopterus Tidestromii, in de- 

 struction of foxglove-sweet sage- 

 yarrow cover, 114; on eroded and on 

 noneroded pasture, (fig.) 118; indi- 

 cator plant, 129. 



Pteridium aquilinum, poisonous to 

 stock, 279, (fig.) 282. 



Public lands, location, and extent, 

 4, 10; homesteading on, 10; for 

 study in grazing course, 364. 



Pulse family, nongrasslike forage plants, 

 151; includes poisonous species, 243; 

 for study in grazing course, 369. 



Purshia, sign of overgrazing, 106. 



Quadrat, form of sample plot, 341; 



square meter, 349. 

 Quaker's-bonnet, name for lupine, 266. 

 Qucrcus, poisonous to stock, 273. 

 Qucrcus Gambclii, poisonous species, 



273- 

 Querctts Havardi, poisonous species, 273. 



