By a very simple experiment a little of a very fine violet dye can be made from mere traces of the materials. One of the raw materials for preparing this violet dye is a substance with a long name, which itself was prepared from aniline. This substance is tetramethyldiamidobenzophenone, and a little bit of it is placed in a small glass test-tube, just moistened with a couple of drops of another aniline derivative called dimethylaniline, and then two drops of a fuming liquid, trichloride of phosphorus, added. On simply warming this mixture, the violet dyestuff is produced in about a minute. Two drops of the mixture will colour a large cylinder of water a beautiful violet. The remainder (perhaps two drops more) will dye a skein of silk a bright full shade of violet. Here, then, is a magnificent example of enormous tinctorial power. I must now draw the rein, or I shall simply transport you through a perfect wonderland of magic, bright colours and apparent chemical conjuring, without, however, an adequate return of solid instruction that you can carry usefully with you into every-day life and practice. TABLE B.[3] ------------------------------------------------------------------------------- DYEING POWERS OF COLOURS FROM 1 TON OF LANCASHIRE COAL. ------------+------------+------------+-------------+-------------+------------ 0.623 lb. of|1.34 lb. of |9.5 lb. of |7.11 lb. of |1.2 lb. of |2.25 lb. of Magenta will|Methyl |Naphthol |Vermilline |Aurin will |Alizarin dye 500 |Violet will |Yellow will |will dye 2560|dye 120 |(20%) will yards of |dye 1000 |dye 3800 |yards of |yards of |dye 255 flannel, 27 |yards of |yards of |flannel, 27 |flannel, 27 |yards of inches wide,|flannel, 27 |flannel, 27 |inches wide, |inches wide, |Printers' a full |inches wide,|inches wide,|a full |a full |cloth a full shade. |a full |a full |scarlet. |orange. |Turkey red. |violet. |yellow. | | | ------------+------------+------------+-------------+-------------+------------ TABLE C.[3] ------------------------------------------------------------------------------- DYEING POWERS OF COLOURS FROM 1 LB. OF LANCASHIRE COAL. ------------+------------+------------+-------------+-------------+------------ Methyl | Naphthol Vermilline | Aurin | Alizarin Magenta or Violet. | Yellow. or Scarlet. | (Orange). |(Turkey Red) ------------+------------+------------+-------------+-------------+------------ 8 x 27 |24 x 27 |61 x 27 |41 x 27 |1.93 x 27 |4 x 27 inches of |inches of |inches of |inches of |inches of |inches of flannel. |flannel. |flannel. |flannel. |flannel. |Printers' | | | | |cloth. ------------+------------+------------+-------------+-------------+------------