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.
------------+------------+------------+-------------+-------

------+------------

[Footnote 3:  These tables were compiled by Mr. Ivan Levinstein, of Manchester.]