﻿INDEX. 



11 



Pace. 



3-17 



1-68 

 4-6 



1-68 



35-36, 



38,40 



40 



14-20 



10-11 



Pigs, pasturing on dry-land crops, experiments and results, Bulletin No 



1915-1921 •__■*. 1143 



Pima cotton, self-fertilization and cross-fertilization, bulle- 

 tin by Thomas H. Kearney 1134 



Pine, timber, deterioration after felling, causes and progress. 1140 

 Pines — 



felled, causes of deterioration 1140 4-6 



injury by frost, studies 1131J 'ft'll 



species susceptible to sap-stain 1128 28 



Pintail, migration records from birds banded in Utah 1145 9-11 



"Pinworms," injury to wood, and prevention 1128 12-13 



Piricularia oryzae, cause of rotten neck of rice, note 1127 15 



Pitch-pockets, description and cause 1128 12 



Pith-ray flecks, in lumber, description 1128 20-23 



Plums, freezing points 1133 3, 4, 5, 8 



Pollen, deposition, relation of place to fertilization 1134 27-34 



Pollination, cotton flower, study of Pima variety, bulletin 



by Thomas H. Kearney 1134 



Polyporus spp., source of decay in woods 1128< 



Polystictus versicolor, injury to hardwoods 1128 



Pork, antineuritic value in diet, experiments 1138 



Potassium, arsenate, composition 1147 



Potatoes — 



composition of tubers spraj^ed and unsprayed with 



copper spray, data 1146 7-16 



freezing points 1133 2,5,6,8 



f 3-4, 9, 



injurv by borax fertilizers 1126^ 10, 19-22, 



[ 25-26 

 yield and composition effect of copper spravs, bulletin 



by F. C. Cook 1146 



Powders, arsenical, properties 1147 



Propellers, airplane, woods used for, and substitutes 1128 



Prunes — 



description, varieties, and value for drying 1141 



dried, production in California 1141 



drying in tunnel evaporator, process 1141 



evaporation, details 1141 



varieties for evaporation 1141 



Plywood, panels, drying directions 1136 



Quinine fungus, chalky, source of decay in softwoods 112S 



Raspberries — 



black, evaporation, directions 1141 



freezing points 1133 



Raupenleim, use against gipsy moth 1142 



Redheads, migration records from birds banded in Utah 1145 



Redwood, brown rot, description , 1128 



Reid, F. R., J. J. Skinner, and B. E. Brown, bulletin on 



"Effect of borax on growth and yield of crops" 1126 



Rhoads, Arthur S., bulletin on "The formation and patho- 

 logical anatomy of frost rings in conifers injured bv late 



frosts" 1 1131 1-16 



Rhode Island, road-building rock, tests, results 1132 31, 50, 52 



Rice — 



agronomic data of seven new varieties 1127 



cooking properties of new varieties 1127 



plant, description 1127 



polished, lack of vitamin B, experiments 1127 



rotten-neck disease, cause, and susceptibility of varie- 

 ties.- 1127 



shattering, suggestions 1127 



straighthead, varieties immune to 1127 



1-27 

 23 



4,42 



50 

 2 



27-29 



51-54 



50 



41-42 



35 



54-56 



4,5,8 



1-2 



11-13 



36 



1-31 



16-17 



17 



3-5 



6-19 



15 



15-16 



15 



