| | |of | |Vermilline | | | |
\________________/ | |Xylidine | |Scarlet | | | |
= 0.623 lb of | | | |RRR; or 4.75 | | | |
Magenta. | | | |lb. of | | | |
| | | | |alpha- | | | |
or 1.10 | | | | |or beta- | | | |
lb. of | | | | |Naphthol | | | |
Aniline | | | | |= 9.50 lb. of | | | |
yields | | | | |Naphthol | | | |
1.23 lb. | | | | |Yellow | | | |
of Methyl| | | | | | | | |
Violet. | | | | | | | | |
---------+---------+------+----------+----+--------------+---+---+--------+----

[Footnote 2: This table was compiled by Mr. Ivan Levinstein, of
Manchester.]

The next table (see Table B) shows you the dyeing power of the colouring
matters derived from 1 ton of Lancashire coal, which will astonish any
thoughtful mind, for the Magenta will dye 500 yards of flannel, the
Aurin 120 yards, the Vermilline Scarlet 2560 yards, and the Alizarin 255
yards (Turkey-red cotton cloth).

The next table (Table C) shows the latent dyeing power resident, so to
speak, in 1 lb. of coal.

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
chemi