12 



INDEX 



[References are to pagrg.] 



United States Department of 

 Agriculture continued 



in project work _'_".' 



investigations in breeding . . 273 



investigations in labor income . 48 



publications of 59 



secretary of 54 



Vacuum cleaners 78 



Valgren, Professor .... 48 



Van Hise, quoted 323 



Van Slyke 383 



Variation 6, 193, 200 



Variety test, 



corn 257 



wheat 268 



Vegetables . . .' . . . 71, 221 

 Ventilation in 



barn 401 



house 88 



Vermont 18 



Vetch 286 



Vines . . 327 



Wagon horses 400 



Waid, Professor 108 



Walnut caterpillars .... 341 

 Washington, George, quoted 45 

 Water, 



in soil 102-111 



running, in house 88 



Water table 105 



Waugh, Professor . . . 55, 331 

 Webster, Daniel 141 



Weeds 291-299 



controlled by 



chemicals 29:t 



cutting and pulling .... 293 

 rotation of crops .... 149, 293 



smothering 293 



summer fallowing .... '_1H 



tillage 137 



cooperation in control of . . 298 



kinds of 291,292 



project work on . . . . . . 299 



Weisman, August 167 



Wheat 6, 21, 72, 265 



culture of 268 



elevators for 91 



harvesting 64, 270 



improvements of 197 



in rotation 149 



production of 21 



seedlings of 112, 175 



selection of seed of 267 



types of 267 



Whey 383 



Wind breaks 317 



Windmills . . 78 



Wood 177, 313-323 



Wood lot 321 



Woodpecker 351 



Wordsworth, quoted .... 1 



Work 27, 32, 39 



Wyandotte poultry .... 429 



Yeast 



Yorkshire swine 



Zinnias 



233 

 417 



332 



