6i8 
Journal of Agricultural Research 
Vol. XXVI 
Budrot— Page 
cherry, origin from Fusarium gemmiperda . 507 
peach, origin from Fusarium species. 507-512 
Budrot of the Peach Caused by a Species of 
Fusarium: John \V. Roberts. 507-512 
Bud Selection as Related to Quantity Pro¬ 
duction in the Washington Navel Orange: 
A. D. Shamel, R. E. Caryl, and C. S. Pome¬ 
roy. 319-322 
Bud selection, navel orange, relation to quan¬ 
tity production. 319-322 
Buds, unproductive limb of navel orange, pro¬ 
geny tests. 320-322 
Bud variations, progeny tests in citrus prop¬ 
agation . 319-320 
Buildings, injury by termites in Canal Zone. 279, 
283, 288-289, 294, 297, 301 
Burgwald, E. H.: Some Factors Which In¬ 
fluence the Feathering of Cream in Coffee. 541-546 
Butyric acid, rancid fat, examination. 329 
aldehyde, examination. 3-30 
Cadelle, life history and habits. 61-68 
Calcium- 
adsorptions, relations of soil reaction.83-123 
hypochlorite, action as germicide for 
milk. 378-381 
losses from soils by weathering, cause of 
acidity. 115,116 
salts, effect on soil acidity, experiments... 91-114 
Calf raising, milk requirement minimum... 437-446 
California, bean-weevil investigations.609-616 
Calves— 
blackleg, testing spinal fluids. 500, 501, 502 
feeding after weaning, composition of 
feeds. 437“438 
growth on hay and grain feeds after wean¬ 
ing. 439-446 
Canal Zone termites, biological notes. 279-302 
Caproic acidfrom rancid fats, examination... 329 
Caprylic acid from rancid fats, examination.. 328 
Carbon, absorption by roots of plants.303-3n 
Carbonates, absorption by plants from nutri¬ 
ent solutions. 307-310 
Carotin— 
determination by means of the spectro¬ 
photometer and colorimeter.383-400 
methods, comparison. 397-399 
solutions transmittancy, effect of solvents 391-393 
special transmittancy with helium and 
mercury light.387-394 
Carrots, sources of pure carotin. 393 
Caryl, R. E., Shamel, A. I)., and Pomeroy, 
C. S.: Bud Selection as Related to Quan¬ 
tity Production in the Washington Navel 
Orange. 319-322 
Catlin, C. N., and Vinson, A. E.: The Auxo- 
taxic Curve as a Means of Classifying Soils 
and Studying Their Colloidal Properties.. 11-13 
Ceratostomella, sp., penetration into wood, 
studies.220, 223-224, 225-227 
Chemical Analysis of Jairopha stimulosa: 
Paul Menaul. 259-260 
Chemical Examination of “Chufa,” the 
Tubers of Cyperus esculentus Einn6: Fred¬ 
erick B. Power and Victor K. Chesnut. 69-75 
Cherry— 
budrot, origin from Fusarium gemmiperda. 507 
inoculation with Fusarium gemmiperda , 
results.. 510-511 
Chesnut, Victor K., and Power, Frederick B.: 
Chemical Examination of “Chufa,” the 
Tubers of Cyperus Einne. 69-75 
Chickens, enemies of termites. 287-294 
Chigger, North American, distribution and 
nomenclature. 401-403 
germicide for milk and milk products— 372-382 
Chlorin— 
germicidal action in water. 375 
Chlorin water, action of germicide for milk. 378-381 
Chufa— 
beverage. 69, 70 
oil— 
chemical constituents. 77-82 
uses and description. 69, 71 
tubers, chemical examination...69-75 
Citrus propagation, bud selection impor¬ 
tance. 319-322 
Coffee— 
acidity, in different cooking methods and 
different grades. 541-542 
Coffee—Continued. Page 
cream feathering, factors influencing. 541-546- 
substitute, chufa tubers as. 69 
Colletotrickum lindemuthianum, effect on cell 
walls of plants. 595, 598 
Colloidal arsenate of lead, preparation and 
properties. 373“374 
Colloidal gold test, dourine. 499-500 
Colloids, soil, study by means of auxotaxic 
curve. 11-13 
Colorado, false wireworms in. 549 
Colorimeter, use in determining carotin_395-397 
Common Earthenware Jars a Source of Error 
in Pot Experiments: J. S. McHargue_231-232 
Complement fixation tests— 
of serum for dourine. 498 
of spinal fluids, horse and calf. 502 
Compounds Developed in Rancid Fats, with 
Observations on the Mechanism of Their 
Formation: Wilmer C. Powick.323-362 
Constituents of Chufa Oil, a Fatty Oil from 
the Tubers of Cyperus esculentus Einne: 
Walter F. Baughman and George S.Jamie¬ 
son . 77-82 
Cooley, J. S., Brooks, Charles, and Fisher, 
D. F.: Oiled Wrappers, Oils, and Waxes in 
the Control of Apple Scald. 513-536 
Coptotermes niger, description and habits.. 285-288 
Cotton, Richard T.: Notes on the Biology of 
the Cadelle, Tenebroides mauritanicus Einn6 61-68 
Cotton, rootrot fungus, habits.405-418 
Cottonseed- 
meal, toxicity, effect of autoclaving. 9-ia 
oil, solutions, spectra. 337 
poisonous constituent.isolation and studies 233-237 
Cowpea, food of four-spotted bean weevil.. 609-616 
Cream— 
acidity, relation to feathering in coffee... 543-546 
feathering in coffee, some factors influenc¬ 
ing. 541-546 
mixing with coffee, methods affecting 
curdling, and experiments. 542, 543, 545 
treatment for feathering in coffee.... 543,544,545 
Crowngall— 
caused by Bacterium tumefaciens, compari¬ 
son with apricot tumor.47,58 
organism, morphology.425-436 
Cryoscopic readings, potato juices. 244-256 
Cryptotermes tkompsonae, description and 
habits. 384 
Cutworm Septicemia: G. F. White.487-496 
Cutworms— 
inoculation with Bacillus noctuarum .490,495 
septicemia.487-496 
susceptibility to horn worm septicemia... .482,485 
Cyperus esculentus .69-75 
Cytological Studies of Infection of Baart, 
Kanred, and Mindum Wheats by Puccinia 
graminis triciti forms III and XIX: Ruth 
F. Allen. 571-604 
Decay, fruits and vegetables, caused by 
Rhizopus nigricans , note on. 363 
Dew, relation to arsenical injury of plant. 192-194 
Dietz, Harry Frederic, and Snyder, T. E.: 
Biological Notes on the Termites of the 
Canal Zone and Adjoining Parts of the 
Republic of Panama.279-302 
Dihydroxyacetone, examination. 340 
Dihydroxystearic acid, examination and 
testing. 327 
Diketostearic acid examination and testing 326,327 
Dourine— 
pathology of spinal cord in.497-505 
post-mortem findings. 497-498 
study of serology, cerebrospinal fluid, and 
changes in spinal cord.497-505 
Dowell, C. T., and Menaul, Paul: Effect of 
Autoclaving upon the Toxicity of Cotton¬ 
seed Meal. 9-10 
Dungan, G. H., Webb. R, W., Eeighty, C. E., 
and Kendrick, J. B.: Varietal Resistance 
in Winter Wheat to the Rosette Disease.. 261-270 
Earth-almond oil. 77 
Eaton, Orson N., and Wright, Sewall: 
Factors Which Determine Otocephaly in 
Guinea Pigs. 161-182 
Eckerson, Sophia H., McKinney, H. H., and 
Webb, R. W.: The Intracellular Bodies 
Associated with the Rosette Disease and a 
Mosaiclike Eeaf Mottling of Wheat.605-608 
