76 MINUTES OF 



On the Use of the Compound Roller. 



The principal use of this bolt is to give the uppermost roller an inclination 

 forwards when working, and the degree of inclination is governed by the breadth 

 of, and the distance between the two braces G G, which rest upon the shafts 

 when the roller is at; work, so as to make the horses carry a little on their backs, 

 otherwise it would be in danger of endeavouring to fall backwards. 



The distance between G G, is twelve inches, or six inches from the centre 

 of the bolt H. 



Two neighbouring farmers joined and got one of these compound rollers 

 made by this new plau, and they now let it out at half-a-guinea per day. 



On the Use of the Compound Roller, 



JL HE principal use of this instrument is to reduce strong stubborn soils to a 

 fme tilth; for which purpose its powers are wonderful in pulverizing such land. 

 It gives the farmer a command over dry seasons, and enables him to sow his 

 spring and fallow crops in proper time. It also enables him to clean his arable 

 land of Aveeds, whether they arc propagated by the root or by the seed. 



By passing this roller over the land once, twice, or thrice, and drag harroAV- 

 ing it between every rolling, it will be sufficiently fine for any purpose wanted. 



When the clods are reduced so small that the spike roller can make very 

 little more impression upon them, the plain roller and drag harrow may be used 

 to advantage. 



Th IS roller is likewise of very great use in restoring degenerated sward. 



Early in March, when the sward will admit the spikes of the roller, but not 

 the horses feet ; cover it fust with rotten dung, or compost, at the rate of eight 



