PLATE ioo 
Machine for determining the hardness of grain in terms of the crushing point, 
designed by the writer for use at the Kansas Agricultural Experiment Station (j). 
T, table; L, lever arm graduated to tenths and hundredths; C, carrier which runs on 
lever arm as a track on flanged wheels; D, dial which connects with sliding arm, r, 
which in turn moves the carrier C; H , hanger which rests upon lever L by a knife- 
edge bearing surface. At base of hanger is a support with upright pin upon which 
perforated weights are hung. R, ram or hammer fastened to under side of lever arm; 
P, pans in turntable upon which the grains are laid for crushing; Tt, turntable revolved 
on notched gear by means of spokes underneath; W, counterweight adjustable along 
arm a. Weights are brass and are in i-, 2-, and 5-kgin. pieces, calibrated by the United 
States Bureau of Standards. 
