SCIENCE OF THRESHING. 163 



PAGE. 



BOXES OF THE SHOE 54 



BRASSES 



Adjustment of 127 



BRITISH THERMAL UNIT 



Definition of 88 



B. T. U.- 



Definition of 88 



CHAFFER 



Operation of 56 



What it is 33 



Wooden 61 



CHECK BOARD 



Adjustment of 24, 5 1 



Position of 24 



CLEANING MILL 32 



CLEARANCE, PISTON 125 



CLUTCH, FRICTION 144 



COAL 



Amount of heat in 88 



Combustion of 91 



Composition of 91 



Theory of combustion 91 



CONCAVE 



Adjustment of 19, 20, 21, 49, 51, 55 



Construction of 19 



Position of 21 



Teeth of n, 12 



CRANK 



Description of 123, 129 



Disc .126 



