171 (#233) ############################################ WOOLLEN YARN COSTING I2 O 74 6 S Blend B s. d. 125 lb. Mungo at 6d. per lb. 62 6 48 lb. Cotton Laps at 3d. per lb. 173 lb. yielding 150 lb., costing. 5}d. per lb. Thus by employing a more expensive material- cotton laps at 3d. as against waste cotton at ijd.- a marked saving on the cost per lb. of the blend results owing to the better cotton carrying more of the mungo through the carding to the spinning. Blend B will actually deliver a greater weight of condensed sliver and of better spinning quality than Blend A, and in the long run will prove to be much more economical. Finally, note should be made of the utilization of waste products in a woollen mill. The outstanding example of the utilization of a waste product is the income of about £80,000 per annum the Bradford Cor- poration receives from the re-claimed oil from wool- combers' suds. In the woollen mill the “fly”-tech- nically termed "fud "-may prove a not inconsiderable source of income, and it seems more than probable that much oil in the atmosphere and saturating the walls and floors might well be re-claimed and utilized. But it is quite possible that in the near future woollen mills may be kept as clean and tidy as the best cotton mills. Certainly the gain in efficient working will be much more than can possibly accrue from the utilization of any conglomeration of fibre or oil wastes. 171