There are several recipes for making rockets, the best of which is 3 ounces of charcoal, 6 of sulphur, 8 of niter, 32 of meal powder. Another very good one is, 3 ounces of iron filings, 4 of powdered charcoal, 8 of sulphur, 16 of niter, and 64 of meal powder. If a smaller quantity is wanted divide each proportion by 2, if a still smaller divide by 4. Rains. Sometimes gold or silver rains are added to rockets, which give them a very beautiful appearance. A gold rain is made of 2 parts sawdust, 4 sulphur, 4 meal powder, 6 glass dust, 16 niter, in all 32 parts. A silver rain may be made of 2 parts salt prunella, 8 sulphuret of antimony, 8 sulphur, 8 meal powder, and 14 niter, in all 32 parts. Catherine Wheels. These are very pretty fireworks, and are made to turn on a pivot. There are many recipes for the composition of which they are formed; 1 part camphor, 1 sulphur, 1 niter, 2 meal powder. Another is, 3 parts iron filings, 4 sulphur, 12 niter, 16 meal powder. This composition is to be rammed into small cases, and bound round a small wheel having a hole for a pivot in the center. Various Colored Fires. The following recipes will give the young firework maker a great variety of the most beautiful fires. They should never be fired in a room, however, and always away from a dwelling. Crimson Fire. The principal ingredient in this is nitrate of strontium, of which 40 parts are taken, with 13 of sulphur, 15 of chlorate of potass, 4 of sulphuret of antimony, and 2 of lamp-black. These, as all the ingredients for the other fires, should be rubbed in a ladle, and they may be used in a ladle or iron dish set on the ground. Blue Fire. The ingredients of blue fire are 20 parts; 12 of niter, 4 of sulphur, 2 of sulphuret of antimony, and 2 of lamp-black. Green Fire. The ingredients for green fire are in 54 parts; 42 of nitrate of barytes, 8 of sulphur, 3 of chlorate of potass, and 1 of lamp-black. Purple Fire. The best recipe for purple fire is of 60 parts; 25 of niter, 25 of nitrate of strontium, 7 of sulphur, 2 of realgor, and 1 of lamp-black. White Fire. The best and purest white fire is made of 24 parts of niter, 7 of sulphur, 2 of red arsenic, and one of lamp-black. Spur Fire. 9 parts of niter, 4 of sulphur, and 3 of lamp-black, well rubbed together. Blue Lights. These are made of 4 parts of sulphur, 2 of niter, and 1 of powder, and are rammed into squib-cases the contrary way. Port or Wildfires. Saltpeter 4 parts, meal powder 6 parts, and sulphur 3 parts. The composition to be moistened with linseed-oil. Slow Fire for Wheels. Saltpeter 4 parts, sulphur 2 parts, and meal powder 2 parts. Dead Fire for Wheels. Saltpeter 5 parts, sulphur 1 part, lapis calaminaris 1 part, and antimony 1 part. Cautions.