1920] 



INDEX OF SUBJECTS. 



1005 



White pini^ — Continuf^d. 



thinning experiments, N.IT., 42. 



weevil, notes, Conn. State, 251. 

 White scours of calves, 183. 

 Whitman, C. O., posthumous works, 06. 

 Willow- 

 canker, control, ."^SO. 



fence posts, treatment, U.S.D..\.. .'!91. 



rust, control, 350. 

 Willows — 



basket, insect and fundus pests, 55(5. 



basket, Insects affecting, .'^50. 

 Wilson, Jas., biographical sketch, GOl. 

 Wind— 



and pressure charts, U.S.D.A,. 718. 



direction, effect on temperature, U.S. 

 D.A., 118. 



effect on soil organisms, 842. 



effect on insects, U.S.D.A., 120, 157. 



off-shore, U.S.D.A., 719. 



relation to evaporation, 16. 



turbulance, IT.S.D.A., 719. 

 Windbreak tre<-s on prairie farms, 650. 

 Windmills, use in South Dakota, 620. 

 Winds, paper on, T'.S.D.A., ll'.>. 

 Windstorm of Xovember 20, 1910, injury to 



citrus trees, 41. 

 Wire — 



belts with paper dri\'1ng surface, 891, 



screen, durability tests, Wyo., 189. 

 Wireworms^ 



on cotton, U.S.D.A., 352. 



toxicity of organic compounds to, 854. 

 Wisconsin TTniversity, notes, 600, 800. 

 Witche.s' Broom, studies, 821. 

 Woburn Fruit Farm, report, 29. 

 Women, labor-saving for, U.S.D.A., 894. 

 Women's institutes in Canada, 395. 

 Wood- 

 as .source of alcohol, 617. 



ashes as source of potash, 324. 



chemistry of, 617. 



coniferous, proximate analysis, 506. 



decay by Polyporus pan;amrnus, 553. 



distillation, chemistry of, 400. 



distribution of chemical constants, 506. 



drj'ing, internal stresses, 590, 591. 



of stumps, distillation, 888. 



preservation, chemistry of, 400. 



preservation, relation to oil, \is!i. 



pulp cellulose as emergency feed, 170. 



pulp. (Spr also Pulpwood.) 



substitutes In Germany, 204. 



(Sec also Lumber and Timber.) 

 Woodland products, cooperative marketing, 



U.S.D.A., 345. 

 Woodlands — 



English, management, treatise, 442. 



farm, management, 543. 

 Woodlots, care and improvement, 840. 

 Woods — 



.\merlcan, pulp and paper value, GfiO. 



dicotyledonous, structure, 225. 



Inferior, in Trinidad, durability, 44. 



62212°— 21 9 



Woods — Continued. 



of Hertfordshire, 241. 



of .lava. 443. 



of United States, manual, 443. 

 Woody — 



aster, poisoning of slie<'p, Wyo., 782. 



aster, toxic .substance, Wyo., 782. 



plants, sprouting, 130. 

 Wool — 



as affected by dips, Wyo., 172. 



cooperative sales, N.C., 595. 



farm-flock, preparing, Wash., 397. 



fiber as affected by humidity, 571. 



Karakul, production in Canada, 69. 



Kentucky, plan for marketing, 67."?. 



production and prices, U.S.D.A., 695. 



warehouses, regulations, U.S.D.A., 571. 



trade in India, 269. 

 Woolly aphis. (See Aphis, woolly.) 

 Worm infection of pigs, treatment, 467. 

 Wounds — • 



bacteriology of, 880. 



treatment with flavin, 79. 

 Wyoming — 



Station, note.s, 200. 800. 



Station, report, 197. 



T:'niversity, notes, 200. 

 Xanthoftu^i/rtus fuUaicayi. notes, 662. 

 Xanthophyll in leaves, 633. 

 Xerophthalmia — 



production in rabbits, 369. 



relation to vitamin A, 860. 

 Xylehorinus pecania on sweet potatoes, 163. 

 Yam- 

 rot, notes, 151. 



weevil, notes, 258. 

 Tarns — 



culture and use in Fiji, 829. 



fungus attacking, 652. 

 Yeast — 



brewery and mineral, digestibility, 367. 



dried grains, analyses, 867 ; N.J., 69, 

 672. 



fermentation of plant nectar by, 7."0. 



pink, cause of spoilage in oysters. 6G3. 



utilization by animal organism, 64. 

 Yeasts — 



chemical, composition, 415. 



substitutes in Germany, 204. 

 Yerba mate, production in .\rgentlna, 745. 

 Yuma experiment farm, report, U.S.D.A. 



397. 

 Zea, direct origin of, 222. 

 Zethun, spp., synopsis, 60. 

 Zcuzera spp., notes, 450. 

 Zinc — 



chlorld, use against weeds, 42. 



determination, new method, 11. 



effect of acid soils on, 27. 



sulphate, use against weeds, 42. 

 Zoology, bibliography, 250. 

 Zorapteru, ciassiticatlon of, 556. 



