1920] 



INDEX OF SUBJECTS. 



945 



Crab grass, effects on cattle, 384. 

 Cracklings, analyses, N.J., 69. 

 Crambus pracfcctellUH — 



notes, Conn. State, 251. 



on com, 358. 

 Cranberries — 



fertilizer experiments, Mass., 147. 



insects afifectlng, Mass., 158. 



spraying experiments, U.S.D.A., 843. 



storage e.xperiments, Mass., 146. 



winterkilling and frosts, Mass., 119. 

 Cranberry — 



black-head (ireworm, control, Mass., 159. 



diseases, Mass., 155. 



fruit-worm, parasite of, Mass., 159. 



plants, submerged, as afifected by cloudi- 

 ness. 8.30. 



root grub, notes, Mass., 158. 



spanworm, notes, Mass.. 15S. 



spittle insect, control, Mass., 158. 

 Craniotabes and rickets diagnosis, 369. 

 Cratffigomespilus, stability and heredity, 818. 

 Cream — 



buying, permit system, Kans., 682. 



churning and whipping, Wash., 780. 



garlic flavor removal, 878. 



imports and exports, 74. 



neutralization with lime, 75. 

 Creameries — 



cooperative. In Minnesota, 75, 682. 



cooperative, in Oregon, Oreg., 75. 



inspection, Ind., 0S2. 



ledger accounts for, classification, U.S. 

 D.A., 878. 

 Creatin In blood, variability, 265. 

 Creatinin — 



excretion as affected by purgation, 462. 



in blood, variability, 265. 

 Credit unions — 



formation and supervision, N.C., 490. 



negro, in the South, 192. 

 Creosote, effect of viscosity on penetrance 



in wood, 283. 

 Cresol solutions, saponified, preparation, 



U.S.D.A., 273. 

 Cresylic solutions, determining strength of, 



614. 

 Crickets — 



mole, in South Carolina, 159. 



mole, on gi'ass roads, 53. 

 Cronartiiim — 



occidentale, notes, 249. 



ribirola. (See White pine blister 



lUSt.) 



Crop — 



estimates, prewar. In Germany, 



U.S.D.A., 490. 

 forecasting in the Dakotas, 491. 

 introduction tests, Tex., 34. 

 production in Great Britain, 393. 

 reports, U.S.D.A., 193, 294, 491, 694, 



794, 896. 

 reports. Government, value of, U.S.D.A., 



794. 

 residue work in jars. Wash., 726. 

 rotations. (See Rotation of crops.) 

 valuation, feed unit system, 693. 



Crops — 



as affected by soil and climate, Idaho, 

 227. 



irrigation experiments, 387. 



periodicity in, 416. 



time of planting, application of bio- 

 climatic law, U.S.D.A., 509. 



V. pasture, relative labor income, 92. 



(See also Field crops.) 

 a-Crotonlc acid as affected by phosphates, 



131. 

 Crows — 



control, Okla., 51. 



popular account, 50. 

 Crucifer finger-and-toe, 546. 

 Crude fiber. (See Cellulose.) 

 Crustacea muscle, composition, 568. 

 Cryptolamus montrouzieri, notes, 660. 

 Cryptotermes new species, 256. 

 Cucumber — 



bacterial wilt, control, U.S.D.A., 245. 



beetle, striped, control, Mo., 757. 



beetle, striped, in South Dakota, 850. 



Ijeetles, studies, U.S.D.A., 245. 



diseases, notes, 151. 

 Cucumbers — 



analyses, 63. 



wild, role in cucurbit mosaic transmLs- 

 sion, 654. 

 Cucurbit — 



bacterial wilt, U.S.D.A., 245. 



diseases, studies, Ind., 345. 



Fusarium wilt, studies, Tex., 846. 



mosaic, transmission, 654. 

 Culex subgenera, notes, 258. 

 Cultivation — 



effect on soil moisture, 210. 



mechanical, of rice in China, 484. 



motor, apparatus for in France, 289. 

 Cultivator, 6-sliovel, draft of. Mo., 787. 

 Cultivators, mechanical, 892. 

 Culture media — 



changes in reaction due to aetlnomy- 

 cetes, 635 



for testing disinfectants, 181. 



from bouillon cubes, 329. 



from fish, 580. 



reactions, 10, 329. 



variations in H-ion concentration, 381. 

 Culverts, metal, galvanizing, tests, U.S.D.A., 



690. 

 Cuprammonium — 



sulphate, adhesiveness, N.H., 842. 



washes, studies, N.H., 44. 

 Citprcssus spp., disease affecting, 156. 

 Curbs, concrete, construction, 90. 

 Currant — 



dlsea.ses, control. 111., 847 ; Wash., 349. 



industry In California, history, 837. 



lice in South Dakota, 850. 



worms in South Dakota, 850. 

 Currants — 



black, blister rust affecting, 249.^ 



black, classification, 438. 



black, reversion, 448. 



breeding experiments, 742. 



