222 BONES IN SOUTH AMERICA AT ELEVATION ABOVE 7000 FEET. 
3d. With regard to the bones of animals that perished by this 
great inundation, although they have not yet been discovered in 
the high alpine gravel beds of Europe (which is but a negative fact), 
we have in America the bones of the mastodon at an elevation of 
7800 feet above the sea, in the Camp de Geants, near Santa Fe de 
Bagota; and another species of the same genus in the Cordilleras, 
found by Humboldt, at the elevation of 7200 feet, near the volcano 
of Imbaburra, in the kingdom of Quito. Mr. Humboldt has also 
found the tooth of the fossil elephant, resembling that of the northern 
hemisphere, at Hue-huetoca, on the plain of Mexico; and if the 
animal remains of this era have not yet been discovered at such heights 
as these in Europe, let it be recollected that we have no elevated 
mountain plains like those in America ; that our highest mountains 
are but narrow peaks, and ridges of small extent, when compared with 
the low country that surrounds them; and that if it were proved 
(which it is not) that the animals inhabited these highest points, it 
is more than probable that their carcases would have been drifted off, 
as the greater mass of their gravel has been, into the lower levels of 
the adjacent country. 
But in central Asia the bones of horses and deer have been found at 
an elevation of 16,000 feet above the sea, in the Hymalaya mountains. 
The bones I am now speaking of are at the Koyal College of Surgeons 
in London, and were sent last year to Sir E. Home, by Captain W. S. 
Webb, who procured them from the Chinese Tartars of Daba, who 
assured him that they were found in the north face of the snowy 
ridge of Kylas, in lat. 32, at a spot which Captain Webb calculates 
to be not less than 16,000 feet high: they are only obtained from the 
