INDEX." 19 



Bulletin No. Page. 



Railroads, track scales, hay-weighing directions 978 24-28 



Rainfall, effect on crop yields in North Dakota, controlling 



factor 991 3-6, 19-22 



Reynoldson, L. A., and H. R. Totxey, bulletin on " The cost 

 and utilization of power on farms where tractors are 



owned " 997 1-61 



Rhagoletis suavis — 



synonymy 992 2 



See also Maggot, walnut-husk. 



Rhode Island, milling tests of cotton 990 8-10 



Rice, foreign countries, statistics 987 4-66 



Riley, C. V., work on chiggers, note 986 1-2, 5, 8 



Rodents, hosts of chiggers, investigations , 986 6-7 



Roller, use of on beet lands, advantages 995 38 



Root crops, foreign countries, statistics 9S7 6-66 



Root-rot, injury to sugar beets, description and control 



methods 959 18, 47 



Rotation, crop, comparison with continuous cropping 991 22 



Rotations — 



crops, and cultural methods at Edgeley, N. Dak., bulletin 



by John S. Cole 991 1-24 



use of Sudan grass 981 24-25 



Rothgeb, Benton E., bulletin on " Cultural experiments with 



grain sorghums in the Texas Panhandle " 976 1-^43 



Rumania, agricultural statistics, 1911-1920 987 47-49 



Rural- 

 community problems of National importance 984 55 



societies, grange, farm, and home bureaus, dairymen's 



league, pioneers in Belleville community, N. Y 984 47 



Russia, agricultural statistics, 1911-1916_ x _ 987 50-52 



Rust, sorghum, cause "_ 981 63 



Rye- 

 farm prices, by months, 1909-1921 999 37, 40, 43 



foreign countries, statistics '. 9S7 2-62 



green-manure crop, value^ 991 15, 16 



growing, labor and materials, requirements in various 



States 1000 38-40 



market statistics, prices, exports and imports, etc., 1910- 



1921 982 199-204 



San Francisco, market statistics for dairy products, 1918- 



f 142, 144, 



1920 982 145. 148, 



1 149, 154 

 Sawdust — 



alcohol yield , 983 2 



feed from, production, nature, etc '. 983 11 



storage for alcohol production 983 63-64 



Sawlogs, wood waste in lumber production 983 3-4 



Scales — 



platform, description and use in weighing hay 97S 8-13 



railroad track, hay-weighing directions 97S 24-28 



wagon, hay-weighing : 97S 13-24 



Scraper, use on beet land 995 38 



Seed- 

 bed, sugar-beet, preparation, planting date, cultivation, 



etc _• 995 15-18 



cereals, composition, comparison 981 51-52 



clover and timothy, farm prices, by months, 1909-1921__ 999 38, 41, 44 



field crops, requirements in various States, notes 1000 5-50 



grass, growing, labor and materials, requirements in 



various States 1000 45-46 



Johnson grass, characters 981 55-57 



Sudan grass — 



characters 981 55-57 



production, cultural methods, and grades 981 52-63 



