68 MINUTES OF 



On the Const ruction of a Thistle-Cutter. 



and then cleaned and rolled. 



By dressing land with this machine, moss is torn up, ant and mole-hills le- 

 velled and destroyed, the roots of the grass cut and horse hoed, which causes them 

 to throw out fresh lateral shoots or stems; the sward thickened, and the surface 

 made so clean, as to put on the appearance of a perpetual spring, when elos>e fed 

 down. 



By the above management, and by grazing as much stock as will keep the 



grass in a young succulent state, and bobbing or mowing all the tufts and weeds 



ij!,; - three times in the course of the summer, the grazier will be enabled to receive 



every benefit from his land, and likewise prevent the stems of several grasses from- 



running into seed. 



DISSERTATION IV. 



On the Construction of a Thistle-Cutter, 



Plate II. Jl LATE II. Fig. 1. is a geometrical plan of the whole machine complete. 



Fig. 1. 

 ^ V I ' A. the leading share made of cast steel in the form of an isosceles triangle, 



whose equal sides are fourteen inches long, and its base twelve inches, about one- 

 eighth of an inch thick in the middle, tapering to a very fine edge on the outsidcs. 



B B B B. four pieces of ash wood three inches square, and two feet four in- 

 ches long, to which the scythes are fixed as per figure, and are called the scythe 

 handles. 



C C C C. four scythes three feet long from point to point, four inches broad 

 at the widest part, made of cast steel, and manufactured by Messrs. Hunt and Co. 

 at their cast steel manufactory, Bradts, Birmingham. 



D D D D. four other pieces of ash wood, three inches square, and two feet 

 five inches long, for throwing the two hindmost scythes to their proper distance. 



