"I was thinking of that the other day," remarked the captain. "I've got a big chest below,—an old thing I don't use now: we might make the gun fast to the top of it; then put some trucks on the bottom just high enough to point it out over the bulwarks. Here, Hobbs: come below, and help me fetch it on deck."

While they were getting up the chest, Raed and I brought up the cannon-rifle. It was about as much as we could get up the stairs with easily. It was, as the reader will probably remember, set in a light framework of wrought-iron, adjusted to a swivel, and arranged with a screw for raising or lowering the breech at will. The bed-pieces of the framework had been pierced for screws. It was, therefore, but a few minutes' work to bore holes in the top of the chest and drive the screws. Meanwhile the captain, who enjoyed the scheme as well as any of us, split open a couple of old tackle-blocks, and, getting out the trucks, proceeded to set them on the ends of two stout axles cut from an old ice-pole. These axles were then nailed fast to the bottom of the chest. The gun-carriage was then complete, and could be rolled anywhere on deck with ease.

"Decidedly neat!" exclaimed Capt. Mazard, surveying it with a grin of self-approbation.

"What say to that, Trull?" cried Raed.

The old man-of-war's-man had been watching the progress of the invention with an occasional tug at his waistband.

"Yes; how's that in your eye?" exclaimed the captain. "You're a military character. Give us an opinion on that."

"Wal, sur," cocking his eye at it, "I'm free to confass I naver saw anything like it;" and that was all we could get out of him.

"Bring some ammunition, and let's give it a trial," said Kit.

I brought up the powder-flask, caps, and a couple of bullets. The bullets we had run for it were of lead, about an inch in diameter, and weighed not far from six ounces apiece. The breech was depressed. Raed poured in half a gill of the fine powder by measurement; a wad of paper was rammed down; then a bullet was driven home. There only remained to prime and cap it.

"Fire at one of these seals," suggested Wade, pointing to where a group of three or four lay basking on an ice-cake at a distance of eight or ten hundred yards.