1920] 



INDEX OF SUBJECTS. 



1003 



Walnut — Continued. 



diseases, control, 350. 



shell disease, 754. 

 Walnuts — 



culture in Canada, 746. 



time for transplanting, Mo., 142. 



variety tests, Md., 144. 

 War damages, agricultural, estimating, 290, 



835. 

 Warble flies, summary of information, 55. 

 Warbles, ox, importance, 853. 

 Warehouses, wool, regulations, U.S.D.A., 



571. 

 Washington — 



College, notes, 400. 



Station, notes, 400, 499. 



Station, report, Wash., 798. 



Substation, Western, monthly bulletin, 

 197, 397, 496, 698, 798. 

 Wasp, leafhopper, notes, 662. 

 Wasps, petiolate, synopsis, 60. 

 Water — 



absorption by maritime plants, 223. 



analysis, turbidity standard, 613. 



buffalo, trypanosome of, 472. 



chlorin contamination, 478. 



colloidal state in, 224. 



conductivity of ash and hazel wood, 31. 



content of soil, relation to soil, 20. 



disinfection in Argentina, 392. 



duty of. (See Irrigation water.) 



erosion test, 279. 



evaporation from moor, 20. 



flow, as alTccted by afforestation, 16. 



flow, in drain tile, U.S.D.A., 789. 



flow, in dredged ditches, U.S.D.A., 47.S. 



flow, in open channels, measuring, 887. 



irrigation. (See Irrigation water.) 



level of moor soils, 623. 



level, variations, 210. 



locating, use of divining rod, 478. 



meters, Venturi, computation of co- 

 eflicient of discharge, 477. 



of Germany, nutrient content, 728. 



plants as affected by light, 431. 



potable, for country houses, 392. 



potable, hygienic inspection of, 478. 



potable, in Switzerland, studies, 588. 



power of Tnited States, 280. 



purification for laboratory, 279. 



quantities on reclamation projects, 85. 



rain. (See Rain.) 



sterilization by ultra-violet rays, 479. 



supplies, moorland, purification, 478. 



supplies, purification, 888. 



supply by means of cisterns, 279. 



supply contamination. Mo., 787. 



supply from tube wells, 386. 



supply, increasing by reforesting, 16. 



supply on the farm, 479. 



tidal saline, use for irrigation, 185. 

 works, effect on water level, 210. 

 Waterfowl — 



breeding grounds, U.S.D.A., 49. 

 of Nebraska and their food. U.S.D.A., 49 

 Watering troughs, concrete, 90. 



Watermelon — 



anthracnose, control, T'.S.D.A., 348. 



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



wilt, studies, Tex., 846. 

 Watermelons — 



shipments in Missouri, U.S.D.A., 794. 



variety tests, Tex., 36. 

 Water-power resources in France, 790. 

 Water-soluble B. (See Vitamin B.) 

 Water-soluble C. (See Vitamin C.) 

 Waterspout in Adirondacks, U.S.D.A., 719. 

 Waxes — 



iron content, 202. 



saponification determinations, 505. 

 Weather — 



and solar variation, 809. 



Bureau, report, D.S.D.A., 318. 



forecasting, U.S.D.A., 120, 511. 



forecasting, cirrus clouds in, 319. 



hot, and humidity, U.S.D.A., 718. 



periodicity in, 416. 



textbook, 208. 



(See also Meteorological observations 

 atid Meteorology.) 

 Weeds — 



control in coniferous nurseries, 42. 



eradication from lawns, N.Y. State, 535. 



(See also specific plants.) 

 Weevils — 



new from Asia, 163. 



new tropical, 562. 

 Weight burette for gas analysis, 611. 

 Well waters for irrigation, 279. 

 Wells — 



boring, artesian and shallow, 477. 



concrete linings and curbs for, 90. 



contamination and protection, 392. 



hygienic inspection of, 478. 



tube, relation to subsoil water, 386. 

 West Virginia Station, notes, 100. 

 ^Miale muscle, composition, 569. 

 Wheat — 



and rye middlings, analyses, N.J., 69. 



as nurse crop. Wash., 737. 



belt, rent contracts in, U.S.D.A., 290. 



black chaff, notes, Okla., 44. 



bran, anal3'ses, 867 ; Ind., 69, 867 ; 

 Ky., 373; N.J., 69, 672; R.I., 672; 

 Vt., 464. 



breeding experiments, Ariz., 734 ; Ky., 

 332, 824; Mo., 7-36; Wash., 737. 



breeding, pure lines. Me., 641. 



bud-sports, 534. 



bunt, notes, 45. 



chimeras, speltoid, 534. 



composition, effect of freezing, 501. 



cost and price indexes, Mo., 792. 



cost of production, Ohio, 392. 



cost of production in .\rgpntina, 487. 



cost of production in Kansas, 593. 



culture experiments, 528, 824 ; Ky., 

 332 ; Mont., 332, 739 ; Wash., 737, 

 738. 



culture, farm practices, U.S.D..V., 437. 



culture in Manitoba, 640. 



culture on Yuma project, U.S.D.A., 

 393. 



