INDEX 



435 



districts, 360 ; beginnings of 

 dry-farming in California, 357 ; 

 Campbell's work, 361 ; begin- 

 nings of dry-farming in Colum- 

 bia Basin, 357 ; beginnings of 

 dry-farming in Great Plains, 358 ; 

 beginning of modern dry-farm- 

 ing in Utah, 354 ; railroads and 

 dry-farming, 370 ; the work of 

 the experiment stations, 365 ; 

 the Dry-farming Congress, 374 ; 

 work by the United States De- 

 partment of Agriculture for dry- 

 farming, 372 ; present status in 

 California, 383 ; present status in 

 Colorado and Rio Grande ba- 

 sins, 388 ; present status of dry- 

 farming in Columbia Basin, 384 ; 

 present status of dry-farming, 

 382-398 : status in foreign coun- 

 tries, 391 ; present status of dry- 

 farming in Great Basin, 386 ; 

 status in Great Plains, 389 ; 

 status in Mountain States, 389. 



Hoed crops, in place of fallowing, 

 200; in rotations, 299. 



Hoeing, possible hand hoeing, 141. 



Hogenson, 313. 



Holland, variation in plant compo- 

 sition in Holland, 269. 



HoTnestead Bill, the Smoot-M 07\dell, 

 for dry-farms, 425. 



HoTnesteads, on dry-farms, 332, 416. 



Hopkins, 185. 



Horseheans, pounds water for one 

 pound, 14. 



Hosaeus, 84. 



Humid, defined, 24. 



Humid-far-ining , defined, 1, 4 ; 

 vs. dry-farming, 4. 



Humidity, see Relative Humidity. 



Humus, in soils, 58 ; nitrogen in, 

 59, 71 ; and fallowing, 198 ; and 

 green manuring, 297 ; and header 

 stubble, 198 ; and lime, 70. 



Hunt, 225. 



Hygroscopic moisture, 102, 137. 



2f 



Idaho, area, 26 ; soils of, 75 ; evap- 

 oration in, 132 ; fallowing in, 

 197 ; milo in, 246 ; wheats in, 

 240 ; present status of dry-farm- 

 ing, 385, 386, 389. 



Idaho Station, dry-farming in, 369. 



Illinois, water needs of crops on 

 soils of, 185. 



Implements, see Machinery, Engines; 

 for dry-farming, 301-327 ; for a 

 dry-farm, 327 ; steam and other 

 motive power, 321. 



India, sands of India fertile, 58 ; 

 field-water capacity of soils, 110; 

 pumping plants in, 341 ; dry- 

 farming, 353. 



Indian, corn grown by American, 

 244. 



Indian Head, see also Saskatch- 

 ewan. 



Indian Head farm, longest record 

 in Great Plains, 359, 406. 



Indian Head Station, dry-farming 

 in, 370. 



Insoluble residue, in soils, 68. 



Irrigation, see also Water; and dry- 

 farming, 328-350 ; indispensable 

 in arid regions, 331 ; supple- 

 mentary only to natural precipi- 

 tation, 345 ; and plant growth, 

 261 ; development of roots under, 

 90 : economy in small applica- 

 tions, 346 : case of economical 

 irrigation in Arizona, 348 ; use 

 of little water in, 344 ; advan- 

 tages of, 329 ; why mostly prac- 

 ticed in antiquity, 352. 



.lardine, 200, 236, 240. 



.lensen, 190. 



Jerusalem corn, 245. 



Johnson, 154. 



Jujube tree, on dry-farms, 252. 



Kafir corn, 245. 



Kansas, area, 27 ; type of rainfall 

 over, 40 ; soils of, 74 ; climate 



