INDEX 



391 



Page 



Tiles, size of 196 



Till, assorted, soil value 40 



glacial 38 



Timber lands, fire as a means of 



clearing up 127 



Time of the day to supply water. 270 



year in which to supply water 267 



Tools, farm 129 



Toxic soil substances, theory of. . 60 



Tractioi , resistance to 305 



Transit, surveyors' 158 



Transportation companies, good 



roads help 279 



Tree roots, drain obstruction by 210 



Trees, removal from peaty lajid. . 130 



roadside 351 



Types of soils, areas of 53 



Unassorted till formed good soils 39 



Underdraining peaty lands 228 



Undulating country 41 



Unit cost of object-lesson maca- 

 dam road, Springfield, Mo. 293 

 Value of soils, care in judging the 92 



Vertical drains 221 



Villages, help from good roads. . . 279 



Vocation, farming as a 13 



Vocations, farming is rising in 



the scale among 17 



Wagons, wide tire 344 



Water, acre-foot of 258 



conveying from source to 



farms 252 



entrance of into drain tile ... 170 



film and free 75 



Water, gates 253 



general movementscf, in the 



earth 85 



holding power varies with 



different soils 81 



hydrostatic 83 



hygroscopic 83 



machinery for elevating. ... 247 



measuring of 254, 258 



movements in the earth. ... 85 



sources of . . 238 



taking from ditches upon the 



land 262 



time of the day to supply ... 270 

 time of the year in which to 



supply 267 



Waters, lake 142 



Waterways, use and improvement 



of 151 



Weeds, roadside 351 



Weir, measuring 254 



Wide tire wagons 344 



Width of road 312 



Width of the surface grade de- 

 pends upon various condi- 

 tions 312 



Windbreaks, farmstead 102 



Wire fence 361 



Wood and metal roadways 324 



Wood aqueducts, need 245 



Wooden fences 361 



Worms, earth, benefit to soil .... 68 



Woven wire fences 361 



Zoology 29 



