318 



Index 



stalk borer, 180. 



starch manufacture, 265. 



use for, 265, 270. 

 stock food, use as, 280. 

 storage, 258. 

 Stuart, 27, 33, 43, 45. 

 sulphur, 126. 

 survey results, growing costs, 296. 



texture of cooked potatoes, 263. 

 three-lined leaf-beetle, 176. 

 tillage, results of, 137. 



tools, 135. 

 tip-burn, 168, 202. 

 tobacco, 1. 



value in United States, 3. 

 tomato, 1. 

 tools, tillage, 35. 

 tortoise beetles, 176. 

 tractors, 165. 



tuber-unit, method of breeding, 62. 

 types of potato growing, 97. 



United Kingdom, production of 



potatoes in, 2. 

 United States, production of 



potatoes in, 2, 3. 

 yields to the acre, 12. 



Uses of potato, 259-286 (chapter 

 XIV). 



varieties of Iowa and central west, 



25. 

 verticillium wilt, 196. 



Waid's experiments, 72. 

 Warren, 11. 

 water requirements, 92. 

 Webber, 62. 

 weed killing, 140. 



wheat value in United States, 

 3. 

 world's crop, 1. 

 white grubs, 180. 

 wild potatoes, 47. 

 Wilson, 81. 

 wire worms, 181. 



Wisconsin, production of potatoes 

 in, 3. 



yield, highest recorded in United 



States, 12. 

 yields, 12, 87. 



Zavitz, 71. 



Printed in the United States of America. 



