FIELD CROPS. l()i 



288. What would have been the total yield in the 

 United States in 1909, had every acre of corn produced 

 255 bushels? Its value? 



289. What was the average value of corn per acre in 

 1899 ? In 1909 ? 



290. The total number of farms in the United States 

 in 1899 was 5,740,000. Corn was grown on 88.6 per cent 

 of these farms. On how many was corn grown that 

 year? Ans. About 5,100,000. 



291. What was the average production of corn per 

 farm that year ? 



292. What was the average value of corn per farm 

 that year ? 



Statistics of Wheat. 



293. The total production of wheat in 1899 was 658,- 

 500,000 bushels and in 1909, 683,400,000 bushels. What 

 was the per cent increase ? The 1899 crop was an increase 

 of 40.6 per cent over the previous decade. What was the 

 production in bushels in 1889 ? 



294. The value of the 1899 wheat crop was $370,000,- 

 000 ; the 1909, $657,700,000. What was the average price 

 per bushel in 1899 ? In 1909 ? 



295. The average yield per acre was 12.5 bushels in 

 1899, and 15.4 bushels in 1909. How many acres of 

 wheat were grown each year? What was the per cent 

 of increase per acre? 



296. It is now claimed by experts that the average 

 yield per acre of corn and wheat can be doubled. What 

 would this have added to the wealth of the country in 

 1909 ? In ten years at the same rate ? 



