Apr. 5-June 28, 1924 
Index 
1261 
Caeoma nitens — Page 
occurrence without spermogonia_ 1047-1048 
uninucleated aecidiospores and associated 
phenomena.__...1046-1058 
See also Bust, orange. 
Calandrinia menziesii, susceptibility to curly- 
top...... 314 
Calcium- 
compounds, effect on numbers of bacteria in 
soil....__ 1163,1164-1165 
effect on orange-tree growth and com¬ 
position_ 278,281,283 
nitrate, effect on wheat growth.. 387-393 
oxid, effect on numbers of bacteria in soil.. 1163, 
1164-1165 
California— 
beet- 
disease. See curly-top. 
leafhopper and curly-top disease_ 279-320 
climate, comparison with Alabama and 
Japan..—. 249-252 
Coachella Valley, physiography, soils, and 
vegetation... .„.—. 723,725-727,763 
Southern, Acala cotton, spacing_ 1081-1093 
Calliphora larva embryology, notes_ 6 ,7, 8 , 10,20 
Cambium curculio, Conotrachelus anaglypti- 
cus ... 377-386 
Campbell, F. L., and Moore, William: 
Studies on Nonarsenical Stomach-Poison 
Insecticides. 395-402 
Cane— 
blight fungus of currant, comparison with 
blackrot of apple____ 596-597 
sugar, root disease, relation to snails. 969-970 
Cane-blight fungus of currant, on currant and 
apple.— .... 584,589-598 
Canker, citrus, susceptibility of citrus species, 
hybrids, and relatives.. 227-239 
Canning, sweet corn, relative merits of vari¬ 
eties, etc.. 403-443 
Carbon— 
disulphid, use in control of bean weevils. 347-355 
tetrachlorid, anthelmintic efficiency in 
treatment of foxes_ 331-337 
Carpellate hemp plant, description.. 1068 
Oarsner, Eubanks, and Stahl, C. F.: Studies 
on Curly-top Disease of the Sugar Beet.. 297-320 
Caryl, R. E.: Bud Selection as Related to 
Quality of Crop in the Washington Navel 
Orange__ 521-526 
Casimiroa edulis, susceptibility to citrus 
canker--- 227 
Castle, W. E., formula for estimating genetic 
factors........ 1098 
Caterpillar, tent, insecticides testing. 395-402 
Cats, feeding with gossypol...191-196 
Cats-claw, indicator of land value..112,122 
Cattle- 
testing for abortion infection... 613-614,617-620 
vaccination, control of infectious abortion 609-620 
Ceanothus cuneatus, indicator of land 
value.—__ 116,118,120,123,126 
Cecil clay loam subsoil, colloids from, break¬ 
ing strength______ 511,512 
Cedar, reproduction after logging... 1152-1154,1157 
Cells— 
excretory, bee larva. 1202 
sap density, relation to environmental con¬ 
ditions in the Wasatch Mountains, Utah 845-907 
Cereal rusts, physiological races, investiga¬ 
tions and discoveries.__ 705 
Chaetospermum glutinosum, susceptibility to 
citrus canker... 228 
Chamiso, indicator of land value_ 101 , 
113,116,118,121,122,125 
Chaparral, indicator of land value... 115, 
119,120,125,126 
Chemicals, use on citrus fruits to prevent 
rot... 961-963 
Chenopodium spp., susceptibility to curly- 
top.. 314-315 
Chickens— 
breeding, experimental study of sex ratio. 200-220 
flesh, vitamin B content, studies and ex¬ 
periments.. 463,466-467,468-469,472 
infection with fowl typhoid, studies and 
post-mortem findings. 76-77 
Chickens—Continued. Page 
sex ratio- 
experimental study and discussion. 200-220 
relation to antecedent egg production.. 199-224 
Chick-peas— 
heating caused by insect infestation-1106, 
1109-1112,1113,1115 
protection by hydrocyanic-acid gas fumi¬ 
gation. ...n.. 649-660 
See also Peas, chick. 
Chlorid, content of leaf-tissue fluids of cot¬ 
tons, Egyptian and Upland. .. 695-704 
Chlorophyll deficiency in rye. 169 
Chromosomes— 
literature citations. 680-681 
maize and maize relatives.. 673-682 
number in wheat, relation to morphological 
characters of hybrids... 1028-1029 
Chrysanthemum nema, Apelenchus ntzema- 
bosi ? description. 1061-1062 
Cibona fructicola, same as Sclerotinia ...... .956,957 
Cicer arietinum. See Chick-peas; Peas, chick. 
Citrus— 
bud variations, progeny tests and perform¬ 
ance records.. 522-525 
fruits, blue mold rot prevention, results of 
borax treatment-. 961-968 
growth in spring, required temperatures and 
relation to scab. 243-253 
hybrids, susceptibility to citrus canker 230-231, 
235-239 
plants, scab infection, conditions essential 243-253 
scab- 
cause, history, and distribution.. 241-242 
relation to environmental factors_ 241-254 
yearly prevalence, conditions determin¬ 
ing. 249-250 
susceptibility to citrus canker. 227-239 
wild relatives, susceptibility to citrus 
canker....... 227-229,232 
Cladosporium citri, cause of citrus scab, envi¬ 
ronmental factors_ 241-254 
Clarification methods in sugar determina¬ 
tion, comparison.. 481-483 
Clear-cut method of cutting Douglas fir, effect 
on reproduction_ 1233-1235,1239-1241 
Clearings, forest, effect on conditions of site 1149- 
1151 
Club-leaf, cotton growth disorder.. 810 
Clubroot— 
effect of soil temperature and soil moisture 549-562 
literature relating to___ 549-552,559-561 
Clustering, cotton growth disorder.. 806-807 
Coachella Valley, California, cotton spacing.. 1081- 
1093 
Coix lachrymajobi, pollen counts and chromo¬ 
somes...... 677 
Coleogyne, indicator of land value... 110 , 
118,121,126,127 
Colloids— 
literature cited. 513 
soil- 
binding power, determination.... 506-508 
binding power, factors influencing_ 499-513 
binding power of different kinds.. 511 
heat of wetting. 927-935 
Color— 
picramate, dilution, effect. 481 
standards for sugar determination method. 479- 
480,486 
Coloration, meadow mice.. 980-982,1014 
Colorimeter readings, values, factors for 
obtaining.. 483-484 
Community plants for hot-water treatment of 
grain... 79-80 
Composite plants, subject to nematode galls. 474 
Compounds, nitrogenous, effect on bacteria in 
soils. 1159-1162 
Conifer timber, indicator of land value. 116, 
120,123-126 
Conotrahelus — 
anaglypticus — 
distribution, description, life history, and 
control.. 377-386 
See also Curculio, Cambium. 
spp., literature concerning.. 386 
Cook, O. F.: Acromania, or “Crazy-top,” a 
Growth Disorder of Cotton... 803-828 
Copper, determination in meats.. 340 
