22 DEPARTMENT OF AGRICULTURE BULS. 451-475. 



Bulletin 

 Pine — Continued. No. Page, 



white, varieties, description, characteristics, wood, 



etc 460 4-26 



yellow, varieties, description, characteristics, wood, 



etc 460 26-46 



Pines — 



generic characteristics 460 2-46 



importation, danger and prohibition 453 2 



Rocky Mountain Region, key to species 460 46 



seed produced per a«*e by different species 475 4 



white, species of Rocky Mountain Region, descrip- 

 tions and characteristics 460 4-26 



yellow, species of Rocky Mountain Region, descrip- 

 tions and characteristics 460 26-46 



Pinon — 



botanical relationships 460 18-19 



description, occurrence, growth habits, and value 

 of seeds 460 18-21,46 



Mexican — 



description, occurrence, growth habits, etc 460 15-18, 46 



discovery, relation to other pinons, and intro- 

 duction into England 460 15-16 



Pinus — 



albicaulis. See White-bark pine. 



apacJieca. See Apache pine. 



aristata. See Bristle-cone pine. 



banksiana. See Jack pine. 



cembroides. See Pinon, Mexican. 



chiliauhuana. See Chihuahua pine. 



contorta. See lodgepole pine. 



divaricata. See Jack pine. 



edulis. See Pinon. 



flexilis. See Limber pine. 



latifolia. See Apache pine. 



mayriana. See Apache pine. 



monophylla. See Single-leaf pine. 



monticola. See Western white pine. 



murrayana. See Lodgepole pine. 



ponderosa. See Western yellow pine. 



strobiformis. See Mexican white pine. 



f 4 17 21 



Pintail, food plants, habitat and propagation 465s ^k q^ 07 



Pipe, irrigation, sizes required for given water delivery, 



cost, etc 462 29, 30, 57, 62 



Pipewort, description, note 465 10-11 



Planting, forest seedlings, methods 475 23-32 



Plover, eggs — 



composition and comparison with other foods 471 6 



food use, note 471 2 



Plows, road building, descriptions, and cost 463 27-31 



Poa— 



annua, description 461 13 



compressus, description 461 13 



pratensis, description 461 13 



trivialis, description 461 13-14 



Poi, source and food use, note 468 24 



Poisoning — 



chicken pie, causes, note 467 26 



potato salad, cause, note 46S 14 



rodent, baits and methods on forest plantations 475 50-53 



" Pokelgans," nature and use 467 6 



Polish wheat, seedlings, description 461 29 



Polysulphid, ratio to thiosulphate in lime-sulphur dips — 451 8-9 



Polysulphids, effects of excess of lime, and of oxidation 



in lime-sulphur dips 451 9-12 



