1920] 



INDEX OF SUBJECTS. 



957 



Guomonia — 



erythroHtoma, notes, 246. 



iliau on sugar cane, La., 348. 



veneta, notes, 652, 754. 

 (ioats — 



raising in China, 171. 



wasting disease, Mich., 688. 

 (loiter, prevention. Wash., 384, 784. 

 Qonorephalutn — 



notes, 456. 



aeriatitm, parasitized by Epyris ex- 

 trancus, 662. 

 Gooseberries — 



breeding experiments, 742. 



culture, Nebr., 644. 



culture and mariseting, 40. 



eradication by chemicals, 246, 248. 



insects affecting, Wash., 349. 



(Sec also Ribes.) 

 Gooseberry — 



die-baclr, notes, 246. 



diseases, control, 111., 847 ; Wash., 349. 



lice in South Daliota. 850. 



mildews, notes, 246. 



worms in South Dakota, 850. 

 Gossypol in cottonseed products, N.C., 411. 

 Gracilaria sp., notes, 851. 

 Graft hybrids, infection studies, 544. 

 Grain — 



coarse, for human food, Can., 366. 



Corporation and guarantied wheat 

 prices, 895. 



culture under irrigation, U.S.D.A., 637. 



dried, analyses, R.I., 672. 



effect of early seeding, Wyo., 134. 



elevator companies, cooperative, U.S. 

 D.A., 895. 



market as affected by car shortage, 

 U.S.D.A., 595. 



rusts in South Dakota, 546. 



sampling device, U.S.D.A., 642. 



situation in southeastern Europe, 

 U.S.D.A., 695. 



small, culture experiments. Wash., 

 738. 



email, harvesting and thrashing, 

 U.S.D.A., 637. 



smut, treatment, 244. 



stored, insects affecting, 252, 253, 254. 



supply, future, of Austria-Hungary, 

 398. 



tran.spiration of in relation to light, 

 131. 



warehouses, regulations, U.S.D.A., 896. 

 Grains, whole, as poultry feed, N. Mex., 

 378. 



{See also Cereals and special crops.) 

 Granary — 



portable, 892. 



weevil as affected by air-tight storage, 

 254. 



weevil, notes, 450. 



weevil, paper on, 51. 



weevil, vitality and rate of increase, 

 254. 



62212°— 21 6 



Granite paving block, modified abrasion 



test, 85. 

 Grape — 



anthracnose, notes, 244. 



black rot as affected by dry weather, 

 652, 



black rot, treatment, 657. 



diseases, control, 111., 847. 



downy mildew, factors affecting, 657. 



downy mildew, treatment, 657. 



industry in California in 1919, 837. 



juice, unfermented, manufacture, 

 Calif., 717. 



juice, vitamin B in, 765. 



oTdium, notes, 244. 



oldium, treatment, 657. 



rots, control, 657. 



scale in California, notes, 256. 



sirup, manufacture, Calif., 716. 



.sphinx moth, studies, 453. 

 Grape-berry moth, control, U.S.D.A., 454. 

 Grapefruit — 



fulgorid leafhopper affecting, 556. 



juice, vitamins A and B in, 765. 



pink-fleshed, origin, 440. 



pruned v. unpruned, 439. 



spraying experiments, 157. 

 Grapes — 



American, market position, U.S.D.A., 

 694. 



animal parasites of, 657. 



breeding experiments, Md., 143. 



copper fungicides for, 155. 



culture and marketing, 40. 



culture experiments, 40. 



culture in Morocco, 835. 



direct-bearing hybrid, 239, 745. 



drying, factors affecting, Calif., 715. 



eastern, marketing, U.S.D.A., 836. 



Franco-American hybrids, 239. 



muscadine, breeding experiments, Ga., 

 147. 



muscadine, new varieties, Ga., 148. 



protection from spring frosts, 40. 



pruning and training, Md., 143. 



pruning experiments. New York State, 

 341. 



root formation and development, 836. 



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



stocks, drought resistance of, 40. 



vnrieties for calcareous soil, 745. 



varieties, new, 438. 



variety tests, U.S.D.A., 144. 



(See also Vineyards.) 

 Grass — 



Bahla, culture experiments, 528. 



Bermuda, variety tests, U.S.D.A., 330. 



l)uffalo, dioecious nature, 522. 



land management, 814. 



mixtures as pasture for dairy cows, 

 U.S.D.A., 468. 



mixtures, comparative yields, Idaho, 

 738. 



roads, injury from mole crickets, 53. 



rusts, comparison, 244. 



I 



