RO, Ind. In Indian music means quick.
ROBE-courte, Fr. literally means a short gown. Provost-marshals, under-bailiffs, vice-seneschals, then lieutenants, and various other persons, occasionally employed in camps and garrisons, to assist the military in maintaining internal good order and discipline, were formerly called in France officiers de robe-courte.
ROC, Fr. A rock.
Roc de lance, Fr. In tournaments the wooden part of a lance is so called.
ROCHER, Fr. a large rock; derived from roc, and generally bearing the same import.
ROCHE à feu, Fr. a solid composition, which gradually consumes when it has been lighted, but which emits a very broad and lively flame, and is not extinguished by water.
ROCKETS. Composition.
| Old proportion. | New proportion. | ||||
|---|---|---|---|---|---|
| lbs. | oz. | lbs. | oz. | ||
| Saltpetre | 4 | 0 | —— | 4 | 4 |
| Sulphur | 1 | 0 | —— | 0 | 12 |
| Charcoal | 1 | 8 | —— | 2 | 0 |
Composition for the Stars.
| Mealed powder | 0 | lb. | 8 | oz. |
| Saltpetre | 8 | 0 | ||
| Sulphur | 2 | 0 | ||
| Antimony | 2 | 0 | ||
| Isinglass dissolved | 0 | 3 | ¹⁄₂ | |
| Spirits of wine | 1 | pint. | ||
| Vinegar | 1 | quart. | ||