CAPITAL-GOODS AS A FACTOR IN PRODUCTION 283 



northeastern divisions, followed by the Pacific and Mountain divisions, 

 and was again lowest in the East South Central division. Disregard- 

 ing the District of Columbia, the highest average value of implements 

 and machinery per acre of improved land in farms appeared in the 

 states of Rhode Island and Massachusetts; outside of the New Eng- 

 land and Middle Atlantic divisions the highest averages were in Ari- 

 zona, Delaware, and Wisconsin, the high average in Arizona being 

 doubtless attributable to the importance of the cultivation of irrigated 

 lands. Between 1900 and 1910 the average value of implements and 

 machinery per acre of improved farm land more than doubled in 

 Louisiana and South Carolina, while the average value of land in 

 crops more than doubled in Louisiana and California, and exactly 

 doubled in South Dakota. The lowest rate of increase in the value 

 of implements and machinery per acre of land in crops was in New 

 Mexico, and the same state showed the only decrease (20. 2 per cent) 

 in their value per acre of improved land. 



85. A CONCRETE CASE 1 



Mr. J. M. Ward, of Limestone, Maine, enumerates the necessary 

 machinery for potato growing as follows: 



2 sulky plows $100 



2 spring-tooth harrows 25 



i planter 65 



i two-row riding cultivator 45 



i horse hoe for hilling 10 



i four-row sprayer 65 



i digger 100 



Total $410 



This equipment, with the addition of one wagon of the type 

 known as a jigger, is operated by two men and four heavy horses. 

 The two men with this equipment are able to prepare for, plant, and 

 handle 50 acres of potatoes up to digging time, when they require six 

 or seven day hands to pick up the potatoes. This, of course, is an 

 expensive equipment compared with that formerly used on the potato 

 crop, which was as follows: 



i walking plow $15 



i harrow 15 



i horse hoe 10 



Hand hoes 3 



Total $43 



. l Farmer's Bulletin 365, p. 13. , 



