I 62 SCIENCE OF THRESHING. 



PAGE. 



Operation of 9, 67, 72 



Punch for 6^ 



Size of punch for 66 



Spacing holes for lacing of 66 



Tension of 52, 64 



Using 64 



BLOWER 



Use of 1 1 6 



BL AST- 

 Adjustment of . . . 60 



Angle of '. . .33, 34, 38, 61 



Conditions of 3 <; 



Difference between strength and speed of 57 



Direction of 33, 59 



Law of 36 



Office of 35 



Rule of 56, 57 



Speed of 36 



Strength of 32, 35, 36, 39 



Testing of 59, 60 



BOILER 



Blowing off . 1 1 6 



Care of 114 



Classes of 103, 104 



Cleaning 93, 105, 116 



Construction of 105 



Definition of 103 



Description of 103 



Jacketing 1 1 6 



Used for engine frame 120 



