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By Aldred F. Barker

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System and Material. Tram or weft silks Organzine or net silks Standard Weight. -I I Artificial fibres Fixed Length. rooo yds. 476 or 500 metres Examples. 3 dram silk indicates rooo yds. -If 1 lb. ; what is the count in the (1) worsted, (2) cotton, (3) Yorkshire skeins woollen, (4) linen, and (5) Galashiels woollen methods of counting? (1) (2) (3) (4) (5) 33,600 33,600 33,600 33,600 33,600 7 7 7 7 7 560 840 256 300 200 = 60'S worsted. = 40'S cotton. 1311's Yorkshire skeins woollen. II2'S linen.

Costing 25. 4d. per lb. A more difficult calculation is as follows: Required the price per lb. of a three-fold twist yarn, made as follows: one thread of 44'S worsted at 35. 8d. , one thread of 36's spun silk at 17s. , and one thread of 36 skeins (Yorkshire) at 25. 6d. ; allowing 17t per cent. for twisting-up in worsted and 15 per cent. for twisting-up in silk. ANALYSIS OF WOVEN FABRICS Evidently the first thing to be done is to bring all thE counts to one denomination; so first reduce the silk and worsted to woollen counts, thus : - f60 44's worsted = 44 X = 961 skeins woollen count'>.

To £ro and upwards. Neither of these extremes is necessary or perhaps desirable. A good, substantial pair may be purchased for about £1, which should be quite accurate enough for all ordinary purposes, yet not so finely adjusted but that they will stand a little rough usage. Weights may be obtained in boxes at various prices. The analyst should be provided with th~ following grain weights: 50, 20, zo, 10, 5, 2, Z, I, '5, 'Z, 'Z, '1, '05, 'OZ, 'OZ, '01; and he should be careful to lift them about with the tweezers supplied, since handling is very liable to affect their accuracy.

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