At first the weather was fine, the wind fair, and the voyage prosperous. But one night there came a deep calm. Not a breath of air moved over the sea, which was as clear and polished as a looking-glass. The captain walked the deck with the surgeon of the ship, a nephew of his own, named Gregory.

Tom Gregory was a youth of about nineteen, who had not passed through the whole course of a doctor’s education, but who was a clever fellow, and better able to cut and carve and physic poor suffering humanity than many an older man who wrote M.D. after his name. He was a fine, handsome, strapping fellow, with a determined manner and a kind heart. He was able to pull an oar with the best man aboard, and could even steer the brig in fine weather, if need be. He was hearty and romantic, and a great favourite with the men. He, too, was a restless spirit. He had grown tired of college life, and had made up his mind to take a year’s run into the Polar regions, by way of improving his knowledge of the “outlandish” parts of the world.

“I don’t like the look of the sky to-day, Tom,” said the captain, glancing at the horizon and then at the sails.

“Indeed!” said Tom, in surprise. “It seems to me the most beautiful afternoon we have had since the voyage began. But I suppose you seamen are learned in signs which we landsmen do not understand.”

“Perhaps we are,” replied the captain; “but it does not require much knowledge of the weather to say that such a dead calm as this, and such unusual heat, is not likely to end in a gentle breeze.”

“You don’t object to a stiff breeze, uncle?” said the youth.

“No, Tom; but I don’t like a storm, because it does us no good, and may do us harm.”

“Storms do you no good, uncle!” cried Tom; “how can you say so? Why, what is it that makes our sailors such trumps? The British tar would not be able to face danger as he does if there were no storms.”

“True, Tom, but the British tar would not require to face danger at all if there were no storms. What says the barometer, Mr Mansell?” said the captain, looking down the skylight into the cabin, where the first mate—a middle-sized man of thirty-five, or thereabouts—was seated at the table writing up the ship’s log-book.

“The glass has gone down an inch, sir, and is still falling,” answered the mate.