and on the Culture of Hemp in Canada. 72 



hemp, and would not cost more than a common saw-mill • 

 as the brakes of the frame continue in motion the same as 

 that of a saw-mill, twenty men might be employed, who 

 would do asmuch as fifty or sixty could do in the old way, 

 and with much more ease and pleasure to themselves; and 

 this is not the only advantage that would result from such 

 mills ; it would cause something of a social meeting, which 

 the youth would be particularly fond of. At such meetings 

 all the defects respecting the culture and management of hemp 

 would be examined ieto, and those who raised the best would 

 become ambitious, and try to excel each other ; thus we 

 might reasonably expect that Upper Canada would far exceed 

 all other countries in the world for the growth of good hemp. 



Reference to the Engraving of Mr. Bond's Machine for 

 breaking Hemp. Plate I. Fig. 3, 4. 



Fig. 3. a. Represents the axis of a water-wheel, on which 

 is fixed a trunnion of four lifters lb b 1, each of which lifters 

 raises in succession a lever c, which, by means of a chain 

 connected with it, pulls down another lever d, -and thereby 

 raises the upper part of the double brake e ; as each lifter of 

 the trunnion passes the lever c, it allows the upper part tof' 

 the brake to fall upon the hemp on the lower part of 

 the bxaktff, and by its weight and teeth intersecting the 

 teeth of the lower brake^y^, the woody parts of the hemp 

 plant are separated by repeated strokes from the fikments or 

 fibres of the hemp proper for use, and complete the first 

 operation necessary in the preparation of hemp ; g is a table 

 on which the woody parts of the hemp fall, and which table 

 gives security and strength to the frame ; hhhh are the 

 four legs or supports of the frame. 



Fig. 4. Shows <t section of the teeth of one half of the 

 double brake above mentioned : it is betwixt the upper and 

 lower rows of these teeth that the breaking of the hemp 

 takes place, by the repeated rise and fall of the upper part 

 of the brake upon it. 



Fig. 5. Shows the upper part of the brake, in which 

 i i show the two rows of teeth, h k the two pins on which 

 it is moved, 11 the part to which the chain which raises the 



upper 



