226 



WHEELS OF THE INTERMEDIATE SIZE. 



These wlieels are 5 F. 2 In. high, made of the best ma- 

 terials, nearly upright, and the dishing only about 1 In. 



The naves are 10^ In. long, and llj In. thick. The 

 spokes are 3 In. broad, and \i In. thick ; the fellies 4 In. 

 broad, and 2 In. thick ; the iron rims f In. thick, and in 

 one piece. 



In using a machine like this, it may, on extraordinary 

 occasions, be proper to add a third wheel ; in which case, the 

 one above described might answer the purpose. But, were 

 a third wheel to be made for this particular machine, it would 

 be in better proportion at 6 In. lower. 



The weight of the Intermediate Machine is considerably 

 greater than that of the Small-sized one, being about 61 

 cwt. avoirdupois ; and it is calculated for trees of from eigh- 

 teen to more than five-and-thirty feet high. 



For underwood, large shrubs, or the like, of which the 

 roots and branches are not extensive, I have sometimes 

 made use of a machine still lighter, and more manageable 

 than any of the three above delineated. It consists of the 

 pole of the Small-sized Machine, as already described, 

 mounted on a pair of old coach wheels, from 4 to 4^ F. 

 high, with one stage only upon the crossbar. To these 

 have been added fellies 4 In. broad, with an iron rim i In. 

 thick. Such a machine may be drawn by a small pony 

 and is admirably adapted to light work. Whether with or 

 without a horse, it can be conveniently introduced into 

 woods and plantations, where a larger implement would not 

 be productive of the same dispatch, and where the latter 

 could not by any means be brought to operate. 



As to the taking-up of underwood, little needs to be said 

 on that head. He who attends to the directions above given 



