1204 
Journal of Agricultural Research 
Vol. XXX 
Page 
See Pine, Western yellow. 
Planting, Season for Western Yellow Pine, 
and Sowing: W. G. Wahlenberg_ 245-251 
Plants— 
needs of element substances.. . 193 
Toxic Effect of Dieyanodiamide, Studies: 
F. E. Allison, J. J. Skinner, and F. R. 
Reid-- 419-429 
Poison, toxicity of onion juice, study_175-187 
Polypeptides— 
Occurrence in Ungerminated Maize 
Kernel: S. L. Jodidi.. .... 587-592 
Occurrence in Ungerminated Rye Kernel: 
S. L. Jodidi-and J. G. Wangler. 989-994 
Potash, recovery from cow’s manure. 988 
Potatoes- 
Degeneration Diseases, Infection and Dis¬ 
semination Experiments: E. S. 
Schultz and Donald Folsom.. 493-528 
disease spread.. 521-528 
leaf-roll disease, symptoms and experi¬ 
ments. 484-501,506,514, 516-517,524-625 
relation to Mucorracemosus— . 868 
spindle tuber disease, symptoms and ex- 
periments.:... 494-506,514-516,522-525 
streak disease, symptoms and experi¬ 
ments .... 494-507, 510-512,516 
Sweet, Infection by Different Species of 
Rbizopus, Influence of Temperature: 
J. I. Lauritzenand L. L. Harter. 793-810 
Potter, Alden A., and Melchers, Leo E.: 
Study of the Life History and Eeologic 
Relations of the Smut of Maize.161-173 
Precipitation, agency in spread of blister 
rust in Pacific Northwest... 603-604 
See also Rain. 
Proteins, decomposition by microorgan¬ 
isms,studies.... 2834265,275-280 
Psilocybe, Ferment in Organic D4bris: 
Charles Thom and Elbert C. Lathrop- 625-628 
Puccinia poiophylli Schw., Composite Lfte 
History: H. H. Whetzel, H. S. Jackson, 
and E. B. Mains___ 65-79 
Pyrausta spp., descriptions... 778-785 
Pythium- 
aphanidmrmtum. Cause of Cottony Leak 
in Cucumbers: Charles Drechsler... 1035-1042 
iebaryannm and Two -Related Species 
from Geranium, Studies: Ha-rry 
Braun. 1043-4962 
fungus, cause of root rot of peas._. 293 
Quisenberry, Karl S., Coffman, Franklin 
A., and Parker, John H.: A Study of 
Variability in the Burt Oat... . 1-64 
Rabies, Dog, Vaccination as a Prophylactic 
against. Studies of Single-injection 
Method: Harry W. Schoening. 431-439 
Radicicola, Soy Bean, Adaptation to a 
Specific Host Variety: Alfred T. Per¬ 
kins. 243-244 
Rafflnase, study of. 964 
Ram- 
agency in spread of— 
alfalfa weevil. 486-487 
blister rust in Pacific Northwest. 603-606 
root rot of peas. 320 
relation to usefulness of soil mulch.819-820, 
826-830 
Rat, Albino, Feeding with Chlorinated 
Milk: J. W. Read and Harrison Hale.. 888-892 
Rathbun-Gravatt, Annie: Direct Inocula- 
lation of Coniferous Stems with Damp¬ 
ing-off Fungi... 327-339 
Read, J. W. and Hale, Harrison: Feeding 
Chlorinated Milk to the Albino Rat... 889-892 
Reed, George M., and Stanton, T. R.: 
Relative Susceptibility of Selections 
from a Fulghum-Swedish Select Cross 
to the Smuts of Oats. 375-391 
seed sowing, in Northern Rocky Moun¬ 
tains: W. G. Wahlenberg... 637-641 
Seeding for, failure inGermany.. 641 
Reid, F. R., Allison, F. E., and Skinner, 
J. J.: Toxicity Studies with Dicyano- 
diamide on Plants_419-429 
Page 
Reinking, O. A., Bailey, Alice A., Johann, 
Helen, Sherbakoff, ,C. D., and Wol- 
lenweber, H. W.: Fundamentals for 
Taxonomic Studies of Fusarium_ -838-843 
Reproduction, Tree, after Forest Fires in 
Northern Idaho: J. A. Larsen.1177-1197 
Ehkopns spp.— 
factor in sweet potato decay_ 793-810 
Infection of Sweet Potatoes, Influence of 
Temperature: J. I. Lauritzen and L. L. 
Harter... 793-810 
study as rot fungi in storage goods_ 961 
Rhoads, Arthur S.: Root Rot of the Grape¬ 
vine in Missouri Caused by Clitocybe 
tabescens (Scop.) Bres... 341-364 
Ribes— 
season of infection with blister rust, de¬ 
termination in'Pacific Northwest_ 593-598 
spp., wintering of blister rust spores in 
Pacific Northwest_ 605 
Rocky Mountains, Reforestation by Seed 
Sowing: W. G. Wahlenberg. 637-641 
Rodents, hindrance of reforestation.. .. 640 
■Root- 
Louse, Strawberry in Tennessee: S. Mar- 
covitch. 441-449 
rot— 
Clitocybe, of grapevines, relation to .tim¬ 
bered lands and drainage.858-361,362 
cotton, fungus producing. 475-477 
Fungus, Texas, Ononium .OmAwoium 
Shear, Life History: C. L. Shear.476-477 
grapevine, control measures. 359-361 
Grapevine in Missouri Caused ,by Cli¬ 
tocybe tabescens (Scop.) Bros.: Arthur 
8. Rhoads.. 341-264 
grapevines, history, symptoms,.distri¬ 
bution, etc... 341-364 
Pea, Caused hy Aphanomyces eutei- 
ches: Fred Reuel Jon® and Charles 
Drechsler . 293-325 
pea, description, etc. 293-297,313-325 
sugar cane, anatomy .. 215-217 
Roots, growth as influenced.by sulphur... 938 
Rose, Dean H., and Lindegren, Carl C.: 
^Phytophthora Rot of Pears and Apples.. 463-468 
bacteria of in oysters. 973-975 
Mycelial Neck, of Onion, Contrdl by 
Artificial Curing: J. C. Walker_ 365-373 
Oyster, Organisms of: Albert C. Hunter 
and Bernard A. Linden. 971-975 
Phytophthora, of Pears and Appl®' 
Dean H. Rose and Garl.C. Lindegren.. 463-468 
Root— 
Grapevine, in .Missouri, Caused by 
CtUocybe tabescens (Scop.) Br®,: 
Arthurs. Rhoads........ 341-364 
Peas in United States, Caused by 
Aphanomyces eutciehcs: Fred Reuel 
Jon® and Chari®-Drechsler. 293-325 
See also Root rot. 
Sweet potato, Study of Fungi: L. L. 
Harter- 961-969 
Rotation, Effects of Succeeding Crops, 
Especially on Tobacco: W. W. Garner, 
W. M. Lunn, and D. E. Brown..1095-1132 
Rotations, references in study of effects on 
yield----L.„_... 1132 
Rudolfs, Willem: Effect of Seeds upon 
Hydrogen-ion Concentration Egui- 
libriumin Solution.. 1021-1026 
Rust- 
blister— 
history and distribution in Pacific 
Northwest_ 598-600 
movement in Pacific Northw®t, fore¬ 
cast-- 606 
season of infection, determination in 
Pacific Northwest'._ 593-598 
spread under moisture conditions. 603-604 
spread under weather conditions of 
Pacific Northw®t, discussion.. ,604-606 
summary of study in Pacific Northwmt 606-607 
mayapple, study of composite life history. 65-79 
White Pine Blister, Spread under Weather 
Conditions, Study: L. H. Pennington. 593-607 
Rusts— 
phylogenetic relationship_ 78 
referene® to publications on. 79 
