In Germany the following compositions are used:

1234567891011121314
Chlorate of potashparts2440122040212114209640
Chlorate of potash and copper2323
Chlorate of baryta18
Nitrate of potash1226
Nitrate of lead24
Nitrate of baryta40
Calomel1372812124818
Sulphide of copper281264
Sulphate of strontia207237
Oxalate of soda1610
Chalk5
Powdered zinc1428
Powdered charcoal511
Sulphur1211363
Gum lac18132188
Soap31333
Starch10
Sugar44
Pine soot1

The above mixtures are intended to give coloured sparks, according to the numbers.

No.1 gives a bluish-white colour.
2 and 3 give yellow.
4 gives green.
5 gives green.
6, 7, 8, 9 and 10 give blue.
11 and 12 give violet.
13 gives red.
14 gives purple.

The materials are mixed with a small quantity of a solution of starch, so as to form a thick paste, which is forced through a perforated plate, the holes in which are twice as large as it is intended the sparks should be on drying. The small pieces fall on a pasteboard, to which the workman gives a rapid horizontal motion to round the grains. They are then dried, and those which are perfectly round are selected and separated by sieves of different meshes to collect those of the same size together.

Chinese Fire.

Red Chinese or Gerbe Fire.

Calibre of
the case.
Saltpetre.Sulphur.Charcoal.Iron Sand.
1st order.
lbs.lbs.oz.oz.oz.
12 to 161347
16 to 221357 oz. 8 drms.
22 to 361468

White Chinese Fire.

Calibre.Saltpetre.Bruised
Powder.
Charcoal.Iron Sand.
3rd order.
12 to 16lbs.1lb.12oz.7oz.8drms.11oz.
16 to 221118 118drms.
22 to 361118812