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.]
Before we go another step, I must ask and answer, therefore, a few
questions. Can we not get some little insight into the structure and
general mode of developing the leading coal-tar colours which serve as
types of whole series? I will try what can be done with the little
knowledge of chemistry we have so far accumulated.
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