xxxiv THE ESSENTIALS OF AGRICULTURE 



Rice, 9, 125, /7J/., 429 ; where grown, 

 173; cultivation of, 173-174; har- 

 vesting, 174 



Roberts, J. P., 100 



Robinson, J. H., 435 



Roman farming, 91 



Romans, the, use of agricultural im- 

 plements by, 1 68 



Root hairs, 26-28 



Root rot of tobacco, 291 



Root tips, 41 



Roots and tubers, 231 ff. ; value of, 

 231 ; importance of, 231 ; soils 

 adapted to, 231-232; the potato, 

 233 ; time of planting, 233 ; beets, 

 234 ; sweet potatoes, 234 



Rose, Laura, 380 



Roses, 288 



Rotation of crops, 86-87, 116, 164, 

 287, 291, 310 



Roughage, 342-343, 392 



Russia, oats in, 169; barley in, 171; 

 flax in, 187 ; pastures in, 192 ; sugar 

 beets in, 236 ; forests in, 279 



Russian thistle, water drawn from 

 soil by, 29 



Rusts of grain, 287, 295-296 



Rye, 38, 62, 86, no, 172, 327, 342; 

 water drawn from soil by, 29 ; in 

 orchards, 274 



Sanderson and Jackson, 312 



Sanitation, 297, 405-406, 421-424 



San Jose scale, the, 315 



Sargent, F. L., 155 



Scab of apples, 292 



Scherrfius, W. H., 247 



Science as aid to agriculture, 2-4 



Score cards (Appendixes A, B, C, D, 

 E, F, G), i-xi 



Scotland, cattle in, 384-385 



Scratching shed, 426-427 



Sears, F. C., 319 



Seed, quantity of, per acre (Appen- 



1 dix J), xvi 



Seed selection, 10-14; of corn, 

 142-146 



Seeds, germination of, 36-37 ; life of, 

 37-38 ; alfalfa, 37 ; canna, 37 ; clover, 

 37 ; coffee bean, the, 37 ; cotton 

 seed, 37 ; locust seeds, 37 ; stratifi- 

 cation, 37 ; planting of, 38 ; testing 

 for germination, 147-149 



Separating cream from milk, 375- 

 377 



Shakespeare, William, quoted, 330 



Shallu, 226227 



Shaw, Thomas, 132, 222, 230 



Sheep, 4.09 ff. (see also Feeding ani- 

 mals) ; manure of, 93 ; silage for, 

 259; development of types of, 409 ; 

 characteristics of types, 409-410; 

 fine-wool breeds, 410; American 

 Merino, 410-411; Delaine Merino, 

 411; Rambouillet, 411 ; middle-wool 

 breeds, 411; Southdown, 412; 

 Shropshire, 412-413; Hampshire 

 Down, 413; Oxford Down, 414; 

 Dorset Horn, 414-415; Leicester, 

 415; long-wool breeds, 415; Cots- 

 wold, 416; Lincoln, 416 



Shirreff, Patrick, 10-11 



Shorts, 342, 367, 402, 427 



Sickle, the, 2-3 



Silage, 344, 346, 365, 366, 393, 427 



Silkworms, 308 



Silos and silage, 248 ff. ; green and 

 dried fodders compared, 248-249 ; 

 how silage keeps, 249-250; advan- 

 tages of the silo, 250-251 ; silos and 

 crop limits, 251 ; silage crops, 252 ; 

 essentials of the silo, 252-253; 

 feeding silage when fresh, 253; 

 sizes of silos, 254-255 ; cost of silos, 

 255; when to cut crops for silage, 

 2 55> 256 ; filling the silo, 257 ; pit 

 silos, 258; amount of silage to feed, 



2 59 



Size of farm, 436-439 

 Skim milk, 326, 328, 367-369, 402, 



404 



Slingerland and Crosby, 312 

 Smith, Adam, quoted, 115 

 Smuts of grain, 287, 293-295 

 Smythe, William E., 132 

 Snyder, Harry, 90, 100, 114, 121 

 Soil, the, 49 ff. ; definition of, 49-50 ; 

 formation of, 50 ; kinds of, 52-53 ; 

 mineral matter of, 52-53 ; cumulose, 

 53-54 ; glacial, 54 ; transported, 54 ; 

 aeolian, 55 ; colluvial, 55 ; signifi- 

 cance of type of, 55 ; properties of, 

 58 ff. ; texture, 58-59 ; weight, 59 ; 

 texture and crop growth, 60-6 1 ; 

 structure of, 61 ; poor physical con- 

 dition, 62 ; color as indicator of 

 value, 62-63 ? p'ant growth as indi- 

 cation of fertility, 63 ; soil water, 

 64-66 ; mulch, 66-67 '> temperature, 

 67 ; life in soil, 68 



