INDEX. 17 



Bulletin 



Oregon — Continued. No. Page. 



fl5, 16, 28, 



com production, movements, consumption, and prices 696] 30, 33, 36, 



I 4i, 50 

 pine. See Fir, Douglas. 



Osage orange, tests for shrinkage, strength, etc 676 26 



Parcel post, marketing berries and cherries, bulletin by C. C. Haw- 

 baker and Charles A. Burmeister , .• 688 1-18 



Peas, growth and water requirements, experiments 700-j ^~^'*' '}-~ 



Pennsylvania — • 



[6, 9, 12, 



bees and honey statistics 685] jl' ^^' H' 



[ 26,"'29, 31 

 [14,16,20, 



com production, movements, consumption, and prices 696|27, 29, 33, 



I 36, 40, 51 



experiments with raw rock phosphate 699 97-99 



State College, investigations of grain-dust explosions in experi- 

 mental attrition mill, bulletin by B. D. Dedrick, R. B. Fehr, 



and David J. Price ." 681 1-54 



Peppergrass, seeds, description 692 23 



Persimmon, honey source, blooming season, by States 685 42-43 



Petroleum, use as dust palliative on roads .' 691 5 



Phosphate — 



ground raw rock, use as fertilizer, experiments bulletin by W. H. 



Waggaman, C. R. Wagner and R. F. Gardiner 699 1-119 



rock- 

 addition to silage, effects on manure. 699 15-16 



fertilizer studies, methods, and results 699-| , i^-. ■■ q 



value as fertilizer, trials by farmers 699 112-114 



Phosphates, availability, determination methods 699 6-10 



Phosphoric acid — • 



solubility, effects of grinding phosphate rock 699 10-12 



solubility, effect of organic fermentation 699-^ _ ~ ' 



Phosphorus, silage corn with and \vithout addition of floats 699 15-16 



Pine, tests for shrinkage, strength, etc 676 31-35 



Piper, Charles V. and F. H. Hillman, bulletin on "The agricul- 

 tural species of bent -grasses" 692 1-27 



Plant growth, experiments — 



correlation between growth and environmental factors 700 41-69 



in location, preparation of seeds and plants, and planting 700 3-14 



Plantain, seed, adulterants of redtop seed, description 692 22-23 



Plant-bug, Southern green- 

 bulletin by Thos. H. Jones 689 1-27 



C 3-11 14- 



life history and description 689< ' 91 



occurrence, damage and control 689 1-3, 2 1-25 



Plant- bugs — 



green, Southern, control, natural and artificial 689 21-25 



hand picking as control method 689 24 



Planting, sugar beets, practices and cost, Utah and Idaho 693 25-26 



Plants, growth — • 



in certain climatic and vegetative associations, bulletin by 



Arthur W. Sampson 700 1-72 



measurements, methods, etc 700 14-27 



Plovsring, sugar beets, practices and cost, Idaho and Utah 693 17-19 



Poisoning, yew-seed, symptons 680 40 



Pollination, importance of bees 685 1 



PoMEKOY, C. S., A.D. Shamel, andL. B. Scott, bulletin on "Citrus- 

 fruit improvement: A study of bud variation in the marsh grape- 

 fruit". .. 697 1-112 



20593—20 ,3 



