1200 
Journal of Agricultural Research 
Vol. XXX 
Burt oat—Continued. Page 
Variability Study: Franklin B. Coffman, 
John H. Parker, and Karl S. Quisen- 
berry. 1-64 
Cabbage, Fusarium - resistant, Progress 
with Second Early Varieties: L. R. 
Jones, J. C. Walker, and John Mon- 
teith, jr_ 1027-1034 
Caldwell, Joseph S.: Some Effects of Sea¬ 
sonal Conditions upon the Chemical 
Composition of American Grape 
Juices__ 1133-1176 
Calorimetry, Direct and Indirect, Com¬ 
parison in Cattle Investigations: Max 
Kriss__ 393-406 
Cane, Sugar, Anatomy of the Vegetative 
Organs: Ernst Artschwager__ 197-241 
Carbohydrates, necessity in development 
of pigments__ 1018 
Carbon— 
dichloride, anthelmintic use_ 949 
Trichloride as an Anthelmintic and Its 
Solubility as a Factor in Anthelmintic 
Efficacy: Maurice C. Hall and Eloise 
B. Cram...... 949-953 
Carotin- 
absorption bands, relation to position of 
xanthophyll bands-- 251-261 
oxidation._____. 580-584 
Properties, Physical and the Preparation 
of the Pure Pigment: F. M. Schertz... 469-474 
Carrots— 
carotin content, separation and purifica¬ 
tion, methods. 471-474 
relation to Mucor racemosus .. 968 
Castor strongylus — 
castoris , n. sp., nematode from beaver, 
description__ 680-681 
n. gen., nematodes, description- 679 
Cattle, Calorimetry, Comparison of Direct 
and Indirect: Max Kriss.. 393^106 
Cereals, Physiological Studies— 
III. The Occurrence of Polypeptides and 
Amino Acids in the Ungerminated 
Maize Kernel: S. L. Jodidi_ 578-592 
IV. The Occurrence of Polypeptides and 
Amino Acids in the Ungerminated Rye 
Kernel: S. L. Jodidi and J. G. Wang- 
ler__ 989-994 
Chapin, Edward A — 
New Nematodes from North American 
Mammals....... 677-681 
Review of the Nematode Genera Synga- 
mus Sieb. and Cyathostoma E. Blanch.. 557-570 
Chickens, Parasite, Ascaridia lineata in the 
United States: Benjamin Schwartz_ 763-772 
Chipping— 
Height, Effect on Oleoresin Production: 
Eloise Gerry.. 81-93 
turpentining, discussion of results_ 91-92 
Chlorine, Germicide, Use in Milk, Study: 
J. W. Read and Harrison Hale_ 889-892 
Chloroform, solubility and tolerance in¬ 
ternally by animals__ 950 
Chromosome theory, sex determination.__ 894-896 
Citron, immunity to wither tip_ 630,634-635 
Citrus- 
Fruit, Disinfectant, Borax as: William 
R. Barger and Lon A. Hawkins.189-192 
Varieties, Susceptibility to Attack by 
Gloeosporium Limetticolum (Clausen): 
Harry R. Fulton__ 629-635 
Citrus-scab, Fungus, Attack on Rutaceous 
Plants, Relative Susceptibility of 
Plants: John R. Winston, John J. Bow¬ 
man, and Walter J. Bach__ 1087-1093 
Classification, Scale Insects of Subfamily 
Ortheziinae: Harold Morrison_ 97-154 
Climate, forest, by National subregions... 698 
See also Weather. 
Clitocybe spp.— 
cause of root rot of grapevine, nomen¬ 
clature and distribution-- 352-358 
tabescens (Scop.) Bres., Cause of Grape¬ 
vine Root Rot in Missouri: Arthur S. 
Rhoads_ 341-364 
Cobalt, Occurrence in Soils and Plants, and 
Its Possible Function as a Vital Factor: 
J. S. McHargue.... 193-196 
Page 
Coffman, F. A., and Stanton, T. R.: Varia¬ 
tion in the Kherson Oat at Akron, Colo¬ 
rado..... 1063-1082 
Franklin A., Parker, John H., and 
Quisenberry, Karl S.: A Study of Vari¬ 
ability in the Burt Oat. 1-64 
Colletotrichum gloesporioides (Penz.), source 
of wither tip_ 629 
Colley, Reginald H.: A Biometric Com¬ 
parison of the Urediniospores of Cronar- 
tium ribicola and Cronartium occidentale. 283-291 
Colorimeter, use in quantitative determina¬ 
tion of xanthophy 11__ 253,254-261 
Conifers, Inoculation of Stems with Damp- 
off Fungi: Annie Rathbun-Gravatt.. 327-339 
Cook, William C.: The Distribution of the 
Alfalfa Weevil (Phytonomus posticus 
Gyll). A Study in Physical Ecology.. 479-491 
Cooperia bisonis, a New Nematode from the 
Buffalo: Eloise B. Cram__ 571-573 
Copper, Occurrence in Solids, Plants, and 
Animals, and Its Possible Function as 
a Vital Factor: J. S. McHargue_193-196 
Corn— 
Borer, European, Lepidopterous Larvae 
Resembling: William O. Ellis_ 777-792 
smut- 
infection, study....161-173 
of, control possibilities.. 163, 170-172 
varieties resistant to smut, experiments.. 172 
Corticium vagum, cause of damping off in 
pine_ 335-336 
Cotton, Relation of Yield to Weather Con¬ 
ditions in Louisiana: Bradford B. 
Smith..__ 1083-1086 
Cottony Leak, Cause on Cucumbers, 
study: Charles Drechsler. 1035-1042 
Cow— 
measurement for reckoning of milk yield. 865 
Relation of Size to Milk Production: 
John W. Gowen__ 865-869 
Cows, Manure of, Plant Food Recoverable 
from: C. F. Wells and B. A. Dunbar.. 985-988 
Craighead, F. C.: Relation Between Mor¬ 
tality of Trees Attacked by the Spruce 
Budworm (Caecoecia fumiferana, Clem.) 
and Previous Growth__ 541-555 
Cram, Eloise B.— 
and Hall, Maurice C.— 
Carbon Trichloride as an Anthelmin¬ 
tic, and the Relation of Its Solubility 
to Anthelmintic Efficacy... 949-953 
Some Laboratory Methods for Para¬ 
sitological Investigations.. 773-776 
Cooperia bisonis, a New Nematode from 
the Buffalo....... 571-573 
Hall, M. C. and Shillinger, J. E.: A Test 
of Raw Onions in the Diet as a Control 
Measure for Worms in Dogs-155-159 
The Egg-producing Capacity of Ascaris 
lumbricoides. ... 977-983 
Cronartium — 
occidentale, Urediniospores, Comparison 
with C. ribicola: Reginald H. Colley... 283-291 
ribicola, Urediniospores, Comparison with 
C. occidentale: Reginald H. Colley. 283-291 
Crops, rotation, article. 1095-1132 
Crossman, S. S.: Two Imported Egg Para¬ 
sites of the Gipsy Moth, Anastatus 
bifasciatus Fonsc. and Schedius kuvanae 
Howard. 643-675 
Cucumbers, Cottony Leak Caused by 
Pyihium aphanidermatum: Charles 
Drechsler.. 1035-1042 * 
Curing, Onions, Artificial, Value in Control 
of Mycelial Neck Rot: J. C. Walker... 365-373 
Curves, Taper- 
Construction: Frederick S. Baker- 609-624 
See also Taper Curves. 
Cyathostoma E. Blanch, and Syngamus 
Sieb., Nematode Genera, Review: Ed¬ 
ward A. Chapin. .. 557-570 
Dairy cow. See Cow; Cows. 
Damping-off Fungi, Inoculation of Conifer¬ 
ous Stems: Annie Rathbun-Gravatt.. 327-339 
Debris- 
Organic, Fermentation from Psilocybe: 
Charles Thom and Elbert C. Lathrop. 625-628 
