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HANDY-BOOK OF HUSBANDRY, 



*■'■ Every part of this Implement has been very carefully studied, 

 "and moulded vv'ith mathematical accuracy, and its operation 

 " is all that can be desired. The two forms represented are 

 "those adapted to different soils, Fig. 71, the stiff loam and clayey 



Fig. 71. — Great trenching plow for stiff soils. 



" soil plow, and Fig. 72, the form adapted to soils of the opposite 

 " extreme, — sandy and gravelly loams, — the flange upon the lower 

 " edge of the mould-board aiding in the lifting of the crumbled 

 " mass, y/. Fig. 72, shows a section of the mould-board, at the 



Fig. 71. — Great trenching plow for sandy or gravelly soils. 



line indicated by the dart D. The plow, Fig. 71, has sets of 

 castings adapted to it, consisting of other shares, and matched 

 pieces for bolting, and modifying its form, so as to adapt it for 

 use in soils of different consistency, thus forming two plows 

 Intermediate between Fig. 71 and Fig. 72- — all calculated to do 

 very much the same work, but in different soils. The cuts. Figs. 



