[ *7 ]

feada precipitated in this way will be as beautiful as thcfe
of the hrft procefs, and the quantity 26 ounces.

The price of that kept in the mops is from 8d. to two
millings per ounce. In bladders 6d.

Blue, powder, or smalt, price from is6d. to 12s.
per ounce.

Blue turnsol, is a blue ufed in painting on wood,
made of the feed of that plant, by boiling four ounces of
turnfol in a pint and an half of water in' which lime has
been flacked.

Indigo. Vide Indigo.

Ultramarine. Vide Ultramarine.

Verditer. Vide Verdker.

Mr. Boyle has given us the following method of
making tranfparent blue, nearly equal to ultramarine.
The principal ingredient is the cyanus, or blue corn-
bottle-flower, which may eafily be procured during the
fummer months.

This flower has two blues in it, a pale colour in the
large outer leaves ; and a deeper blue, in the middle of the
flower : thcfe produce much the beft colour. This may
be obferved by rubbing the leaves while frefli on a piece
of writing paper, fo as to exprefs the juice, which will yield
an excellent colour, that by the experience of two or
three years has not been found to fade.

A fufneient quantity of thefe middle leaves being pro-
cured, let the juice be prefled from them ; to which a
little alum being added, will give a lafting tranfparent
blue, fcarcely inferior in brightnefs to ultramarine.

It is very probable, that if the chives of thefe flowers
were cure i in the fame manner with faffron, they would

D 2 1 produce