^94 Hints for the Formation of 



the end of the upper fpikcd roller, by which means the ftraw 



ii always equally prefled in palling the two-fpiked rollers. 



L. The winch by which the machine is turned. 



MM. The frame of the machine. 



In order to apply this machine to the beft advantage, the 

 inventor propofes a fccond box to be placed at the end of 

 the firft, which box may be of anv length, and fufpended by 

 a line and counter-weight, whereby the end of it is brought 

 down level whilft filling with ftraw, and then drawn up, fo as 

 to give the faid box a declivity, to make the ftraw more eaiily 

 come forward. 



It is alfo prefumed much advantage may be expected in 

 this fort of machine, from its cutting various lengths — refting 

 during the cut — the knives being adjufted to their work by 

 regulating tarings — -the feeding being readily thrown off — 

 and the preffure moveable to cither fide. 



It is alfo well calculated to be applied to any power which 

 may beoccafionallv fixed to the oppofitefide of that on which 

 it is turned by hand; and, by the additional box, when ufed 

 by hand, the workman will be enabled to cut for fome con- 

 tinuance, without Hopping to feed. 



XII. Agenda, or a Collection of ' Objh-valions and Refearcbe* 

 the Refidts of which max ferve as the Foundation for a 

 Theory of the Earth. By M. DE S.VUSSURE. From 

 Journal des Mines. No. XX. 



[Continued from r>a<.e 156.] 



CHAP. XII. 



Obfer-vations to he made on the Valleys. 



j. 1 O obferve the direelion of valleys. Thofe parallel to, 

 the chain of the mountains where they are fituated are called 

 longitudinal ; thofe which interfcel it at right angles, tranf- 



yerfal y 



