WORSTED CARDING]

Up to this point there has been no twist given to the wool, nor any

appearance of a thread. The top, the soft untwisted end, is now run

through the drawing machine, the process sometimes consisting of nine

distinct operations, and is drawn and redrawn until reduced to the size

required for its special purpose; and the stock is then delivered to

the spinning room on spools, and is called roving.

[Illustration:

The book of wonders · 第 27 / 376 题