COTTON. 119 



is composed of two slabbing roves twisted together, and drawn out finer 

 in the intermediate frame. The illustration shows that each one is made 

 up of two strands of slubbing doubled together ; the roundness of these 

 strands is more regular than those of the slubbing in the previous illus- 

 tration. 



Fig. 81 shows the roving strands from the roving frame. If the 

 from the last head of drawings received 512 doublings, then those 



Fig. 79. Slubbings. 



at the intermediate frame would have received 1024, and the strands of 

 rovings 2048 ; and if the yarn spun from these rovings is from doubled 

 roving it means that each end or strand of yarn has received the large 

 number of 4096 doublings and drawings. The six roving strands are 

 remarkably level, round, and almost free from irregularities, and quite 

 free from impurities. The yarn spun from these rovings is known in the 

 trade as 60s. twist (brown). There is always a good demand for it, as 



