FARM MECHANICS. 



163 



569. How many 1,600-pound horses walking four 

 miles an hour, should be used in cutting heavy corn, if 

 the binder is used only five hours daily ? 



570. How many horses, and of what weight, will pull 

 this binder in light corn, walking slightly more than 2.5 

 miles each hour for 10 hours daily ? 



Farm Wagons. 



The draft required for a 2,000-pound net load and 

 wagon, has been estimated for high and low wheels with 

 6-inch tires, from the trials made at Missouri Experiment 

 Station, as follows : 



Draft of Wagon on Different Kinds of Roads. 



571. Given that the high and low-wheeled wagon? 

 weighed 1,760 and 1.330 pounds, respectively, check the 

 figures in the last column and complete the column. 



572. Find per cent of increase in total draft on the 

 gravel road if high wheels be changed to low. 



