INDEX. 



13 



Bulletin 



No. Page. 



Packing, apple, details and costs, Oregon, Hood River Valley 518 43-46 



Packing-house, apple, practices in Hood River Valley 518 43-46 



Palmer, R. C, bulletin on "Yield from the destructive distillation 



of certain hardwoods " 508 1-8 



Panicum miliaceum. See Proso. 



Parsnips, composition and food value and use 503 10-11 



Pasturing, value in erosion prevention 512 4 



Peanut oil, digestibility and food value 505 8-10 



Peniophora gigantica, Imnber-rotting fungus, description, occurrence 



and damage 510 37 



Pennsylvania — 



corn, yields and prices, 1866-1915 515 6 



r 3 4—5 8 



dairy farm, management and cost of milk production 501< ' i Q^n o 



wheat, yields and prices, 1866-1915 514 6 



Pine- — 



lodgepole, lumber production, 1899-1914, and estimates for 1915 . 506 13-15, 32 



lumber, fungi attacking, descriptions and damage 510 31-37 



poles, purchased in 1907, 1911, 1915 519 1-3 



sugar, lumber production, 1899-1914, and estimates for 1915 506 13-15, 30 



white, lumber production, 1899-1914, and estimates, 1915 506< isLig 



yellow, lumber production, 1899-1914, and estimates, 1915 506 13-16, 21 



Plant "boarders, " cause of insect introduction and spread in green- 

 houses ._ .- 513 9-10 



Planting, cotton, time and methods, studies 511 10-11, 62 



Plants- 

 fumigation in greenhouses, list 513 11-20 



growing, school studies 521 4-7 



ornamental greenhouse, fumigation with hydrocyanic-acid gas, 



bulletin by E. R, Sasscer and A. D. Borden 513 1-20 



water, use, school studies 521 14 



Plowing — ■ 



contour, value in erosion prevention 512 4 



spring or fall, cotton growing, practices, studies 511 6-8, 61 



Plows, cotton cultivation, types and use 511 8 



Poles- 

 preservation, methods of treatment 519 4 



purchase — ■ 



in 1907, 1911, and 1915, by kinds of wood 519 1-3 



in 1915, bulletin by Arthur M. McCreight 519 1-4 



Polyporus— 



fraxinophilus , fungus injurious to ash wood, control 523 26 



spp., lumber-rotting fungi, descriptions and damage 510 31-32 



Polystictus — 



spp., lumber-rotting fungi, descriptions and damage 510 31 



versicolor, hardwood fungus, distribution and damage 510 31, 32-33 



Poplar, yellow, lumber production, 1899-1914, and estimates, 1915 506 13-15, 23 



Potatoes, composition 503 3 



Poultry, studies for schools 521 47-49 



See also Chickens; Chicks. 



Power companies, purchase of poles, 1915 519 2 



Preservatives, wood, use in lumber yards 510 38-40 



Prices — 



apples of Hood River Valley 518 17-18 



■wheat, and yields per acre, by States, 50 years, 1866-1915 514 1-16 



Proso — 



digestibility experiments 525 2-9 



food use in Russia and India 525 2, 8 



Pruning, apple trees, practices 518 19-20 



Psychrometer, description 509 7 



Pyroligneous acid, yield from certain hardwoods 508 7-8 



