io6 Index [904 



Plow, in colonial times 4 



Charles Newbold's cast iron plow 6 



Daniel Webster's stump plow 5 



Population and food- supply I 3~ I 4 



Reaping machines, among the Gauls i 



in the United States 7, 9 



Routine work 78 



Threshing, in colonial times . . 2 



in the United States about 1870 .... 8 



"Unskilled workmen" 62 and note 



Wages, daily 60 



monthly . 65 



Wage rates, sympathetic variations in 68 



Webster and his plow 5 



Women's work on the farm 74 



Working-day, length of 84 



