GREENLAND AND ITS ICE. 47 a map of the country, showing the limits of the continental ice, which will show that this continental ice is there much more distant from the sea, and that the width of the fiords at their junction with that ice is not sufficiently great to admit of icebergs of large dimensions being produced in the south- west portions of Greenland. The icebergs, therefore, which are formed in the fiords of South-west Greenland do not ground except in the shallower parts of the fiords ; and in the deeper parts there is no possibility of icebergs grounding in the depth of water in which the cable would be laid. Icebergs occasionally contain large boulders and earthy matter; and some anxiety may be perhaps felt as to the effect upon the cable of large boulders, separated from the iceberg by thawing or breaking up of the berg, and sinking upon the cable. In the first place, not one berg in a thousand is seen to contain boulders ; in the second place, the temperature of the water is so near the freezing point that but little of the bergs is melted on their passage round South Greenland; and, in the third place, should such a thing occur, and a large boulder sink and fall upon the wire, I do not imagine that it would produce the least ill effect, since its specific gravity is but about 2'5; and all who have sounded in deep water know how slowly a body, even lead, sinks in very deep water. It therefore appears, that no boulders detached from icebergs can ever injure the cables. It is well known that a current exists, whose course is down the east coast of Greenland to the southward, round Cape Farewell, and running northward up its western coast. It is to this current that West Greenland owes its ice; for the bergs launched into the sea from the western fiords are but comparatively few, and would never of themselves suffice to impede the navigation or hinder the approach of vessels at any time to this coast; but this current brings with it the floe ice and the icebergs of Spitzbergen and the east coast, which, uniting with the ice of the west coast, produce that

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