192 



Report on Trials of Plows. 



The fourth kind of plowing is in stubble or old land, and is 

 generally called stubble plowing. Fig. 101 represents this style 



ill!llJUIlii|ii!|iiiiiiiiiiin llimiiiillhllliillll 



J^iff. /Of, 



of plowing. The twist of the furrow is more sharp and decided 

 than in sod plowing, as the soil is less compact, and can be pul- 

 verized with less expenditure of power. 



Many side-hills which are fertile, are yet so steep that a furrow 

 cannot be turned up hill, and must therefore be turned down hill. 

 This requires a plow which shall permit the share and mould- 

 l)oard to swing alternately to the right and left of the land side. 



Since mowing machines have been used as a substitute for the 

 scythe, a demand has arisen for a more level culture, dispensing 

 with open furrows and every other form of surface obstruction. 

 The swivel plow being adapted to meet this want, its use has 

 been greatly extended, and few farmers now feel that they can 

 dispense with them. 



There are other kinds of plows, but these five are sufficient for 

 the cultivation of the land, and no good farmer can afford to 

 dispense with them. 



Mr. Holbrook has made an effort to dispense with so great a 

 number by adapting to his sod plows a mould-board for stubble 

 plowing, and a skim plow, when desired, for sod and subsoil 

 plowing; and he has thus undoubtedly greatly increased the 

 range of usefulness of each plow. Still it is impossible to ignore 

 the fact that each plow can only do perfect work when taking the 

 exact depth and width of furrow for which it was designed, and 

 in exact proportion to its recession from this standard does it 

 depart from perfect work. Such being the fact, we hope to see 

 a very considerable increase in the number of plows owned by 

 each farmer, which will enable them to do much better work in 



