422 



Description of a New Subsoil' Plough. 



the soil so much as those before invented, having no fin, nor will it move 

 very large stones ; but it easily breaks the crust formed by the sole of 

 the plough, and makes it pervious to the air and water. Having only 

 two horses, I used it last spring after the harrow, first with the furrow, 

 and then across and diagonally. It completely loosened the soil, and 

 appeared effectually to prepare it for Belgian carrots, which are a good 

 crop, I have also used it as a subturf-plough, and think it still better 

 calculated for that work. My crop appeared to be much increased; 

 and I hope this season to sub turf most of the grass-land on my little 

 farm. Those farmers who have seen it think it a useful implement. 

 I will not tire you with more; but if the little simple invention be 

 thought of any importance, I shall feel happy in answering any in- 

 quiries. 



Hollyjieldy Crickhoivell, August 25^A, 1841. 



The Socidy is not responsible for opinions expressed in the 

 communications of its Members. 



Notice. — The account of the Black Caterpillar is one of a series of papers, which will 

 be republished as a distinct work, and of which the copyright remains with the 

 writer. 



END OF VOL. ir. 



Loudon : Priuted by William Clowes and Sons, Stamford Street. 



