“But it looks like a whale,” persisted Harry; “and it acts like a whale, at least as I have read that they acted. What is it, then?”

“Blackfish,” said the mate, with a sweep of his hand to the other side of the ship. Harry looked in that direction, and was silent in astonishment and delight.

“Hundreds!” said the mate, and resumed his walk on the deck.

There were not so many as that, but there were certainly scores of these creatures sporting lazily in the waves, rolling their black bodies to glisten in the sun, and sending up the puffs of vapor that floated a moment in the breeze and then vanished. It reminded Harry of the skirmish line when the Cadets were encamped at Hingham, and the order “Fire at will” had been given. The puffs were much like those from the Springfield rifle.

The blackfish is really a whale, though the whalemen do not like to consider him as such or give him credit for it. He is small, not generally reaching a length of twenty feet, but otherwise he has all the characteristics of a whale. He blows, breathes, feeds, and lives in whale fashion. But he contains but a barrel or two of oil, of an inferior quality, and hence is beneath the notice of the average whaleman, though vessels in hard luck occasionally turn to and slaughter him rather than return to port empty. His meat, on the other hand, is better than whale meat, and is often esteemed a delicacy on a long whaling voyage when fresh meat from other sources has not been obtainable.

Some time afterward, as they were nearing the Aleutian Islands, Harry was to see his first “real whale,” and witness one of the fierce tragedies of the sea. He sat by the taffrail conning Bowditch’s Navigator, puzzling his way through the intricate and bewildering instructions as to the taking of the sun, the use of sextant and quadrant, the working out of longitude and latitude, while Joe, standing second mate’s watch as was his wont, paced the deck, and now and then passed a word with the boatswain. That worthy was sitting cross-legged near the rail amidships, busy with sailor’s needle and canvas rigging some chafing-gear for some of the lines, when he suddenly sprang to his feet and gazed intently over the bow toward the horizon. A moment he stood thus, and then the great tones of his voice rang out in the musical call:—

“A-h-h blow! There she blows! Whale—o!”

The ship sprang into bustle immediately. The watch on deck, which had been languidly busy over such small matters as the boatswain could devise to keep them at work, jumped into instant action, scurrying hither and thither to get the gear up and the boats in trim for a possible conflict. Those below came piling up on deck, and Joe sprang into the rigging, looking intently toward the spot where the whale was supposed to be. Harry gazed eagerly, but he could see nothing.

Captain Nickerson and the first mate appeared as suddenly from below, and the whole ship was activity and attention.

“Where is that whale?” asked the captain.