A. D. 1873-1905

A. D. 1873-1905

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This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1905 edition. Excerpt: ...Strait coincide with regard to its massiveness and impenetrability. De Long was beset in the same heavy ice. Collinson made several efforts to penetrate the pack in various directions, but without success, and he was at length compelled to return to the lead of open water that is invariably found during the summer along the coast of arctic America. This navigable channel is due to the grounding of the heavy polar pack in the shallow water that extends for a considerable distance off the land. In this ice-free channel Collinson and McClure sailed along the entire American coast to the east, enabling the former to reach the one hundred fifth meridian of west longitude, thus overlapping Parry's discoveries to the westward by a considerable distance. But both these navigators, skilful and daring as they were, were never able to penetrate what we may fairly designate as the palaaocrystic ice, which they met when they attempted to push to the northward beyond the seventy-sixth parallel of latitude. Collinson says that some of the floes were as much as thirty feet above the water. Taking the ordinary flotation of ice as having seven-eighths immersion, we thus have the thickness of the ice-floes established as more than two hundred feet. This was about the thickness of the ice, as estimated by similar deductions, over which I travelled in 1876 to the north of Smith Sound. Captain McClure encountered the same kind of ice. He describes it as of stupendous thickness and in extensive floes from seven to eight miles in length, the surface not flat, but rugged with the accumulated snow, frost, and thaws of centuries. Off the west coast of Banks Land the surface of the oceanic ice-floes was undulating, a hundred feet from base to summit, rising in...show more

Product details

  • Paperback | 148 pages
  • 189 x 246 x 8mm | 277g
  • Rarebooksclub.com
  • United States
  • English
  • black & white illustrations
  • 1236869648
  • 9781236869647