In the dense mist their approach to the icebergs could be known only by the dull roar of the avalanches; then the vessel would shift its course at once; then there was the danger of running into the masses of frozen fresh water, which were as clear as crystal and as hard as stone. Richard Shandon used to take aboard a quantity of this ice every day to supply the ship with fresh water.

The doctor could not accustom himself to the optical illusions produced by refraction; indeed, an iceberg ten or twelve miles distant used to seem to him to be a small piece of ice close by; he tried to get used to this strange phenomenon, in order to be able by and by to overcome the mistakes of his eyesight.

At last, both by towing the brig along the fields of ice and by pushing off threatening blocks with poles, the crew was thoroughly exhausted; and yet, on the 27th of April, the Forward was still detained on the impassable Polar Circle.


CHAPTER VIII.

THE TALK OF THE CREW.

Nevertheless, by taking advantages of such openings as there were, the Forward succeeded in getting a few minutes farther north; but, instead of escaping the enemy, it would soon be necessary to attack it; ice-fields of many miles in extent were drawing together, and as these moving masses often represent a pressure of ten millions of tons, they were obliged to take every precaution against being crushed by them. Ice-saws were placed outside the vessel, where they could be used without delay.

Some of the crew endured their hard toil without a murmur, but others complained or even refused to obey orders. While they were putting the saws in place, Garry, Bolton, Pen, and Gripper exchanged their diverse opinions as follows.