XXXVI 



THE ESSENTIALS OF AGRICULTURE 



beef cattle in, 381 ; development of 

 sheep in, 410-41 1 ; origin of poultry 

 breeds in, 419 



Utah, alfalfa in, 210; sugar beets in, 

 237 



Van Slyke, L. L., 100, 114 



Varro, quoted, 82 



Vergil, quoted, i, 8, 72, 353 



Vetch, 220, 405 



Virginia, tobacco in, 242 



Vivian, A., 57, 71, 81, 90, 100, 114 



Voorhees, E. B., 90, 114, 230 



Walnuts, 63, 281 



Warburton, C. W., 176, 203 



Waring, G. E., 132 



Warren, G. F., 121 



Washington, wheat in, 161 ; vetch in, 

 220 



Waste of soil, 82-83 



Water motor, 449 



Water in soil, 64-66 



Waugh, F. A., 277 



Weeds (Appendix L), xviii-xxiii 



West Virginia, tobacco in, 245 



Wheat, 2-3, 5, 8, 9, 10-11, 13-14, 15, 

 24, 33, 38, 60, 86, 1 06, 125, 156 ff., 

 218, 327, 366, 402, 404, 427, 429; 

 water drawn from soil by, 29 ; food 

 used by, 73; in rotation, 86; history 

 of, 1 56 ; classes of, 1 57 ; districts, 

 158-161 ; plowingfor, 161-164; kind 

 of seed to sow, 165; seeding, 165- 

 166; pasturing, 167; harvesting, 



1 68 ; used as a nurse crop, 196, 208 ; 

 smuts of, 293-294; rusts of, 295-296 



Wheat and dry farming, 130-131 



Wheat-heading and threshing ma- 

 chine, 3 



Wheat middlings, 427 



Wheat shorts, 402 



Wheat straw, digestibilitv of, 324 



Wheeler, II. J., 100 



W T hite clover, 405 



White grubs, 310 



Whitson and Walston, 121 



Wickson, E. J., 277 



Widtsoe, John A., 132 



Wilson, A. D., 203 



Wilt of cotton, 287 



Windmill, the, 449 



Wing, H. H., 380 



W T ing, Joseph E., 203, 417 



Wireworms, 310 



Wisconsin, corn in, 140, 142; wheat 

 in, 1 60 ; oats in, 1 69 ; barley in, 171 ; 

 rye in, 172 ; alfalfa in, 210 ; tobacco 

 in, 244 



Wood ashes, 106 



Wood crop, the, 2jq ff.\ importance 

 of, 279 ; the forest industry, 279- 

 280; forests of the United States, 

 280-281 ; forests as modifiers of 

 climate, 282 ; forests as preventers 

 of floods, 282 ; state and national 

 ownership, 282-284 ; farm wood 

 lots, 284 



Woosley, W. H., 247 



Wyoming, wheat in, 160 



