24S THE CULTURE 



has been turned round fo many times as 

 is neceflary for the croiling, replacing it. 



I mention this becaufe it requires little 

 apparatus 3 the double croffing may lirft 

 be tried in this manner, and, if it comes 

 into pra(Slice, Mr. Vaucaiifons method may 

 afterwards be ufed. The chief advantage 

 of two crofihigs are the fcarts and vibra^ 

 tions which the two threads undergo when 

 they feparate at the croffes ; this makes 

 them fhake of the moifture with which 

 they are loaded, more fpeediy, as the vi- 

 brations are double of what they VvTouid 

 be with only one croffing. 



Some dimenfions of the reel, &c. v/hich 

 are as yet undefcribed, are as follows. See 

 Plate II. Fi^. I. : ,U- 



The length of its bench, P. S. about 

 five foot. 



Its breadth S R. two foot and a half. 



The feet at S and R next the cauldron^ 

 two foot high. 



Thofe at P. and Q^ next the reel, two 

 foot antl a half high. 



The ftop-wires fixed in the two rods 

 C C. project one foot from the tranfverfe, 

 S R. and are about fix inches afunder, njiz, 

 equal to the diameter of the guide-wheel 



I. 



