THE WORLD OF ICE. 231 and those who remained with him in the ship. Al. the able and effective men were sent on these expedi- tions; those who remained behind were all more or less affected with scurvy, except the captain himself, whose energetic nature seemed invulnerable, and whose flow of spirits never failed. Indeed, it is probable that to this hearty and vigorous temperament, under God, he owed his immunity from disease; for, since provisions began to fail, he along with all his officers had fared precisely like the men—the few delicacies they possessed having been reserved for the sick. Unfortunately, their stock of lime-juice was now getting low, and the crew had to be put on short allowance. As this acid is an excellent anti-scorbutie, or preventive of scurvy, as well as a cure, its rapid diminution was viewed with much concern by all on board. The long-continued absence of the sun, too, now began to tell more severely than ever on men and dogs. On the very day the expeditions took their departure one of the latter, which had been left be- hind on account of illness, was attacked with a strange disease, of which several of the team eventually died before the winter came to an end. It was scized with spasms, and, after a few wild paroxysms, lapsed into a lethargic state. In this condition the animal functions went on apparently as well as usual, the appetite continued not only good but voracious. The disease was clearly mental. It barked furiously at nothing, and walked in straight or curved lines per- severingly ; or, at other times, it remained for hours