10 DEPARTMENT OF AGRICULTURE BULS. 1051-1075. 



Bulletin No. Page., 



Oil-seeds, use in rations for finishing poultry, experiments 1052 4-8 



Oklahoma, wheat average and varieties 1074 214 



Oleoresin — 



exudation — 



from living pine trees, description, kind of pines, etc 1064 3-^1 



rate from longleaf pine 1064 9-10 



production — 



{1 0_ Q3 Q4 

 o 7 _oo 4 A 



study of methods, material collection and amount 1064 7-8 



study of the effects on southern pines by turpentining, bulle- 

 tin by Eloise Gerry 1064 46 



Oregon — 



pear growing, location and quality of fruit 1072 3, 7, 8 



Sitka spruce — 



stand, 1918, and cut, 1915-1918 1060 4,5 



volume tables 1060 33-37 



wheat acreage and varieties 1074 214 



f 66-70 



Osmosis, factor in water absorb tion by plants 1059 j 120, 



[ 136-142 



Osmotic pressures atmospheric for depression of freezing point . - - 1059 198 

 Owner-operator, black land of Texas, various employments, and 



years employed 1068 31, 32, 33 



Pacific Coast — 



Sitka spruce, occurrence and importance v 1060 1-2 



States, Bartlett pears, handling, shipping, and cold storage, 



_ bulletin by J. R. Magness ; 1072 1-16 



Packing houses, poultry feeding, rations, experiments, etc 1051 1-24 



Pans, frying for potato chips, types 1055 11, 19 



Paper pulp, manufacture from Sitka spruce 1060 7-8 



Parasites — ■ 



black-walnut curculio 1066 11 



butternut curculio 1066 7 



hickory-nut curculio notes 1066 13-14 



hickory-shoot curculio, notes 1066 15-16 



Parenchyma — ■ 



cells in species of turpentine pine, description 1064 6-7 



tissue, nature and function in pine trees 1064 6-7 



Pastures, relation to feed cost for dairy cows 1071 6-7 



Pears — ■ 



Bartlett — 



cold storage in Pacific Coast States 1072 13-16 



growing in Pacific Coast States, distribution 1072 1-3 



handling, shipping, and cold storage in Pacific Coast 



States, by J. P. Magness 1072 1-16 



industry, extent and magnitude on Pacific coast 1072 1-2 



shipping quality, relation to climatic conditions 1072 5-10 



handling for — 



cannerie„s 1072 12-13 



shipment in a fresh state 1072 3-12 



picking time, testing fruit 1072 3-5 



scald in storage, causes 1072 15-16 



testing for picking time 1072 4 



Peelers, kinds in potato-chip factories , . 1055 9-11, 194 



Pennsylvania, wheat acreage and varieties 1074 215 



Peridermium — 



coloradense, injury to Sitka spruce 1060 18 



decolorans, injury to Sitka spruce 1060 18 



Photometers, description, and uses in forest studies, and cost 1059 54-56 



Picea sitchensis. See Spruce, Sitka. 



Picking, cotton, management by planters 1068 7 



Piedmont, farm management in North Carolina, study 1070 1-23 



