AMERICAN POULTRY CULTURE 
appliances and devices there are numerous other 
Miscellaneous ones, although some of them are 
Equipment designed principally for the large 
breeder and do not come under the jurisdiction 
of this book; they include bone cutters, feed 
cookers, feed mixers, grit crushers, hay cutters, etc. 
Grit crushers enable the operator to make his own 
grit, and this is economical in some sections of the 
country, where a natural supply of satisfactory 
sharp stones and gravel is available. Hay cutters 
enable the owner to cut his own clover or alfalfa 
into short lengths, thus furnishing an excellent sup- 
ply of green food for the winter months. Green- 
bone cutters (not bone mills, which are for grind- 
ing dry bones and are of little value) are discussed 
in another chapter. 
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