GRAIN FARMING IN NORTH DAKOTA. 
21 
extent, the binder does not suffer as much from exposure to the 
weather as do certain other implements, notably those largely made of 
wood. 
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Fig. 13. — The self-binder is most commonly used for harvesting grain. 
Mowing machines and hay rakes (generally two-horse size) are 
found on practically every farm (fig. 14). Each of these implements 
Pig. 14. — The mower. Often several acres must he cut to get a ton of prairie hay. 
is nearly all of iron, and depreciation is therefore not great when 
they are left in the open. 
