The Doctor, of course, could not lose the opportunity of getting drenched to the skin. He stayed on deck with the rest, in silent admiration of the grandeur of the spectacle; and he found his endurance well repaid by the sight of a peculiar phenomenon, which is only observable in polar latitudes.
The storm raged within certain limits, not extending farther than three or four miles. This arises from the fact that, in passing over the ice-fields, the wind is robbed of much of its power, and its fury is soon exhausted. Every now and then, in a fall of the swell the Doctor caught glimpses of a clear sky and a calm sea beyond the ice. The brig had only to go right forward to get into smooth sailing; but she ran the risk of being dashed to pieces in the transit. However, after some hours, Hatteras succeeded in getting beyond the storm, though only by a few cable-lengths, leaving it still raging in the distance.
The appearance of the bay was totally altered. A great number of bergs had become detached from the coast ice by the double influence of wind and waves; and these were scudding along towards the north, crossing and clashing against each other in every direction. They could be counted by hundreds, but the Sound was so wide that the Forward found little difficulty in steering clear of them. It was a magnificent sight; for the moving masses, being endowed with unequal degrees of velocity, seemed like so many runners on a vast race-course.
The Doctor was surveying the scene with enthusiastic admiration, when Simpson, the harpooner, came up, and drew his attention to the changing tints of the sea, from bright blue to olive green.
Long bands stretched from north to south, with the edges so sharply marked, that the line of demarcation could be traced as far as the eye could reach. Sometimes, again, they came to sheets of clear, transparent water, close to others which were perfectly opaque.
"Well, Mr. Clawbonny," said Simpson, "what do you say to this? Isn't it very peculiar?"
"I adopt the theory of Scoresby, the whaler," replied the Doctor. "He thought that the blue waters had been deprived of the myriads of animalculæ and medusæ—a class of zoophytes with which the green waters are loaded. He
