1920] 



INDEX OF SUBJECTS. 



941 



Coconut — Continued. 



oil. sampling and examination, 806. 



palm, Insects aflfectlng, 57. 



scale, notes, 851. 

 Coconuts — 



culture and expression of oil, 240. 



culture in Philippines, 441. 



Insects affecting, 52. 

 Cod muscle, composition, 569. 

 Codling moth — 



control, 743 ; Ind., 338 ; Mo., 757 ; 

 Oreg., 756. 



control in Colorado, 161. 



control In New Jersey, 357. 



control In Oregon, 600. 



control in Ozarks, 357. 



control r. extermination. 558. 



life history, Ind., 351. 



life history, N. Mex., 358. 



notes, Colo., 158 ; Mont., 758. 

 Coffee — 



borer, red, notes, 450. 



breeding and selection, 838. 



culture in French colonies, 342. 



determination of caffein in, 804. 



disease, new, 247. 



insects affecting, 252. 



leaf disease, notes, 444. 



production in Brazil, 292. 



selection experiments, 748. 



substitutes, determination of caffein In, 

 804. 



tliread blight, notes, 152. 



varieties in Uganda, 342. 

 Cold storage — 



diseases of apples, control, Iowa, 38. 



of fruits as affected by handling and 

 packing, .39. 



plant of U. S. Department of Agricul- 

 ture, 892. 



stocks, U.S.D.A., 694. 

 Coleocentrus, notes, 858. 

 Colleges. {See Agricultural colleges.) 

 Colletotrichum — 



falcatum on sugar cane. La., 348. 



gloeofporioidrs, notes, 550. 



lindemtithianum, parasitism by, 46. 



sp, on rubber, 45. 

 Colloid chemistry, application to food 



chemistry, 609. 

 Colloidal — 



action of protoplasm, 429. 



properties of bog water, 224. 



substances, gold number determina- 

 tion, 12. 

 Colloid.s, plant, .studie.'', 524. 

 Colocasia antiquorum, exudation of water 



by, 633. 

 Colon-aerogenes group, correlation studies. 



791. 

 Colonization projects for Argentina, 290. 

 Color — 



changes in green vegetables on cooking, 

 458. 



chart for blending colors In flowers, 

 240. 



62212°— 21 5 



Color — Continued. 



eye, production in birds, 866. 

 inheritance in cattle, 375 ; Wis., 771. 

 inheritance in dogs, 669. 

 inheritance in hor.ses, 378. 

 inheritance in swine, Iowa, 71. 

 laboratory of Bureau of Chemistry, 



problems, 14. 

 standards for colorlmetric determina- 

 tion of H-lon exponent, 211. 

 (See also Pigmentation.) 

 Colorado — 



College, notes, 198. 

 Station, report, 197. 

 Colorlmetric estimations with two colored 



substances, 414. 

 Coloring matter.? prohibited In food in 



Italy, 65. 

 Community — 



consciousness, development, 91. 

 gardens. (See also Gardening and 



School gardens.) 

 improvement. (See also Rural com- 

 munities.) 

 organization, plan, 192. 

 tile drainage organizations, U.S.D.A., 

 478. 

 Comparator, improved, 503. 

 Complement — 



deviation reaction, polyvalent extracts 



for, 181. 

 devi.Ttion, studies, 382. 

 fixation test as affected by previous 



mallein test, 8S1. 

 fixation test for tuberculosis, 278, 687. 

 of animals, constitution of, 684. 

 regeneration, after radiation or heating, 



781. 

 titration of, 780. 

 Complement-deficient serum, phagocytic in- 

 dex. 274. 

 Concrete — 



aggregates producing equal strength, 



482. 

 beams, reinforced, tests, 482. 

 bins, circular reinforced, design, 892. 

 bituminous, bitumen content, 389. 

 blocks, manufacture and use, 86. 

 buildings, small, construction, 188. 

 consistency, apparatus for determining, 



86. 

 consistency, measuring by flow table, 



590. 

 construction, treatise, 889. 

 curbs and gutter.^, construction, 90, 

 dipping tanks, construction, 90. 

 farm buildings, 90. 

 fences and gateposts, 188. 

 fence posts, Ohio, 391. 

 floors, construction, 188. 

 forms, pressure formula, IJ.S.D.A., 388. 

 greenhouses, construction, 90. 

 hotbeds, construction, 90. 

 mixing and laying, 889. 

 mixtures in alkali soils, 482. 

 pavements, reinforcing, 790, 



