| Fair.
6 and 8 | { Fair, if wind | { Fair and frosty, if
| { at N.W. | { wind at N. or N.E.
| { Rainy, if wind | { Rain or snow, if S.
| { at S. or S.W. | { or S.W.
8 and 10 | Ditto | Ditto.
10 | Fair | Fair and frosty.
(A.M.) 2 | Ditto | { Hard frost, unless
| | { wind S.S.W.
2 and 4 | Cold, with frequent |
| showers |
4 and 6 | Rain | Ditto, ditto.
6 and 8 | Wind and Rain | Stormy weather.
8 and 10 | Changeable | { Cold and rain, if
| | { wind N.; snow if E.
10 and 12 | Frequent showers | Cold, with high wind.
--------------------+---------------------+-----------------------

A COMPLETE

SYSTEM OF PYROTECHNY;

OR THE

ART OF MAKING FIRE-WORKS.

In the art of making fire-works, great attention must be paid to the
well-mixing of the materials--without which all labour is thrown away;
to the purity of the articles; and to the proper quantities of each.
Sulphur, to be good, must be of a high colour, and crack and bounce
when held in the hand. For small fire-works, such as may be bought in
the flour will be found quite good enough, but for the larger kinds,
the lump brimstone ground is preferable.

_Benzoin_ is used in fire-works, more for its pleasant scent than any
material use for the purposes of fire. It may be procured at the
chemists, ready for use. The oil is also used in wet composition, for
stars, &c.

_Of Sulphur, or Brimstone._

Sulphur is by nature the food of fire, and one of the principal
ingredients in gunpowder, and in almost all compositions of
fire-works; therefore, great care ought to be taken of its being good,
and brought to the highest perfection. Now, to know when the sulphur
is good, you are to observe that it be of a high yellow; and if, when
held in one's hand, it crackles and bounces, it is a sign that it is
fresh and good: but as the method of reducing brimstone to a powder is
very troublesome, it is better to buy the flour ready made, which is
done in large quantities, and in great perfection; but when a great
quantity of fire-works is to be made, it is best