HARVESTERS FOR DRY-FARMING 321 
soil. Besides, there is an ease in handling the header 
which is not known with the harvester. There are 
times when the header leads to some waste as, for 
instance, when the wheat is very low and heads are 
missed as the machine passes over the ground. In 
many sections of the dry-farm territory the climatic 
conditions are such that the wheat cures perfectly 
while still standing. In such places the combined 
harvester and thresher is used. The header cuts off 
the heads of the grain, which are passed up into the 
thresher, and bags filled with threshed grain are 
dropped along the path of the machine, while the 
straw is scattered over the ground. Wherever such a 
machine can be used, it has been found to be econom- 
ical and satisfactory. Of recent years corn stalks 
have been used to better advantage than in the past, 
for not far from one half of the feeding value of the 
corn crop is in the stalks, which up to a few years ago 
were very largely wasted. Corn harvesters are like- 
wise on the market and are quite generally used. It 
was manifestly impossible on large places to harvest 
corn by hand and large corn harvesters have, there- 
fore, been made for this purpose. (See: Figs. 50, 51 
and 53.) 
Steam and other motive power \ 
Recently numerous persons have suggested that the 
expense of running a dry-farm could be materially re- 
duced by using some motive power other than horses. 
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