Length, 5 ft. Diameter at top, 1·25; Diameter at bottom, 2·75 inches. Length of square, 1 foot 9 inches. Weight of ten, 64 lb.
There is a larger kind, 6 feet in length; weight of ten, 100 lb.
LEVERS.
| ft. in. | lb. | |||
| Iron shod, length | 4 | 0 | Weight of 5 | 36 |
| Common | 6 | 6 | Do. | 54 |
LIGHTS, BLUE.
Blue lights are used for signals, &c., and will burn half a minute.
| Composition. | ||
| lb. | oz. | |
| Saltpetre, ground | 1 | 12 |
| Sulphur, sublimated | 0 | 7 |
| Red orpiment | 0 | 2 |
LIGHTS, LONG (BOXER’S).
The paper case is 10 inches long, 6 inches of which are filled with composition; one end is left open to fix on a wooden holder; the other end is fitted with a nipple, on which a percussion cap is to be placed. By giving the cap a smart blow on some hard substance, it ignites the composition, which will burn for six minutes.