A. E. Blanco, Piece Goods Manual
“ Cotton, linen, ramie, rhea, china grass, etc., ignite and burn readily with a bright smokeless and odourless flame, leaving but a small amount of ash, this being the characteristic of vegetable fibres. Animal fibres, on the other hand, are slower to ignite, the appearance of the flame is lifeless, and the fibres burn more slowly than vegetable fibres. Wool, when burnt, emits a disagreeable odour, and the residue or ash takes the form of a bead or knob. Silk burns in the same way as wool when it is free of "weighting." ”
