Farrell, Frank J. (Frank James), 1877-1937 · London : Charles Griffin & Co. · leaf 33
ea pernyi. The Tussore silk moth is larger than the Bomhyx^ and constructs a larger cocoon. The fibre has a brownish colour and a peculiar siliceous lustre. The brown colouring matter is very difficult to remove, although the fibre will withstand a very considerable amount of alkaline and acid… … Fig. 6.— Tussore Silk Fibres. Raw Tussore contains a considerable quantity of mineral matter. Baston and Appleyard (J.S.D.C, 1888) found that the fibre contained 5-34 per cent, of mineral matter, of which about one- tenth was silica. Boiled with soap to remove the sericin, it loses in weight to the…
