14 



DEPAETMEls^T OF AGRICULTURE BULS. 1026-1050. 



Nicotine — Bulletin No. Page. 



oleate, formulas for cranberry spray 1032 24-25 



sulphate — - 



formulas and results for cranberry spray 1032| q - oq ij^ 



spray for avocado red spider, formula, etc 1035 12, 15 



ISTorth Dakota, hail insurance on crops 1043 16 



ISfova Scotia, big game killing, 1908-1920 1049 22 



l^\irsery, grain rust, Manhattan, Kans., experiments with wheat 



varieties 1046 ^14 



Oak- 

 Australian silk, injury by red spider 1035 3 



white, injurv bv red spider 1035 4 



Oats- 

 growing — ■ 



on dry land, experiments in South Dakota 1039 27-32 



under irrigation, experiments in South Dakota 1039 52-56 



irrigation in Colorado, 1916, 1917 1026 64, 84 



losses from specified causes in various localities, 1909-1918 . . . 1043 6, 8. 10 



seeding rates and dates, dry -land and irrigation farming.l -monf 12,31- 



South Dakota ./ ^""^^t 32, 56 



Ohio, quail-protection laws 1049 17 



Oil- 

 creosote. See Creosote. 



cod-liver, digestibility experiments 1033 3-5 



Java almond, digestibility experiments 1033 5-6 



sunflower seed, production and uses 1045 1-2 



tea-seed, digestibility experiments 1033 6-7 



watermelon-seed, digestibility experiments 1033 7-8 



Oils— 



cod-liver, and other oils and fats, digestibility, bulletin by 



Harry J. Deuel and Arthur D. Holmes 1033 1-15 



wood preservatives — 



sources and nature 1036 6 



specifications by various associations 1036 103-106 



Orange, treatment for control of Argentine ant and mealybug 1040 8-19 



Orchards, citrus — ■ 



infestation with citrophilus inealybug 1040 1-3, 8-15 



r 8—11 



treatment for control of Argentine ant, cost, etc. 1040< i« 90 



Oregon- 

 cranberry industry, and occurrence of blackhead fireworm . . . 1032 2-6 

 game — 



farm, cost and work 1049 47 



value, estimate by W. L. Finley 1049 14 



Pacific coast, blackhead fireworm of cranberry, bulletin by H. 



K. Plank and Carl Heinrich " 1032 1-46 



Palmer, T. S. , bulletin on ' ' Game as a National resource " 1049 1^8 



Parasite, gipsy-moth, description, life history, introduction and 



dispersion, bulletin by S. S. Crossman 1028 1-25 



Parasites, cattle, control on ranges 1031 75 



Paris green, spray deposits on fruits and vegetables, investigations. 1027 1-3, 8, 12 

 Parker, John H., and Leo E. Melchers, bulletin on "Rust 



resistance in winter-wheat varieties " 1046 1-32 



Parsley, wild, occurrence in western South Dakota 1039 4 



Partridges, Hungarian, restocking depleted area, results 1049 35-36 



Pastures, New Mexico, Jornada Range Reserve, capacity, etc 1031 4-41 



Peaches, sprayed, poisonous residue on fruit at picking time,"! ino?/ 18-22, 



investigations J \ 48-49 



Peanut fat, blended, digestibility experiments 1033 12-13, 14 



Peanuts, crop area and uses in south Georgia 1034 12, 15 



C 31-32 



Pears, sprayed, poisonous residue at picking time, investigations. . 1027< 48^9 



Peas, acreage under irrigation, Colorado, Cache la Poudre Valley, 



1916, 1917 1026 43 



