308 (#400) ############################################ WOOLLEN AND WORSTED SPINNING 重 ​percentage of water which is allowable under trade regu- lations. No irregular exposure of cheeses even to sun- light should be possible under any conditions whatever. If the yarn is to be delivered in chain form it may be "chained ” direct from one of the warping systems; or it may be first sized full width and then “ chained ”; or it may be “chained ” and then sized, and dried in as opened a state as possible. Under any circumstances the definition of warping should be borne in mind, viz, a definite number of threads, each at the same ten- sion, in a definite order, and of a definite length. If sized there will be the additional condition-regularly sized with an efficient agent and each thread separated from its neighbour. If yarns are to be delivered on the loom beam all the foregoing particulars may be desired with the additional conditions “ dressed to the required width, regularly wound and tightly tensioned on to the loom beam with equal tension from list to list” and with an end and end lease for drawing or twisting-in purposes. 2. For Weft.Some yarns are so delicate that they will not stand winding ; these must be spun on to spools, paper tubes, or cannettes, such fitting perfectly the shuttles of the looms which must weave them. If, however, yarns will stand winding, it may pay to wind, as irregularities may be taken out and the yarn from about three spinning spools wound on to one shuttle spool - thus markedly reducing the loom stoppages and increasing the weaving efficiency. Under any circumstances care must be taken never to mix wound and unwound spools, there is a " direction of the fibre on every yarn, and to weave alternate spools- wound and unwound—will inevitably result in a “ weft- barred " unsaleable piece. There are two reasons for winding which should not be overlooked. In woollen 308
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