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of the continent was and had been subsiding. They inferred the 
position of the centre of oscillation to be between latitudes 7 6° and 
77°. The elevation of the northern portion, they thought, was indi- 
cated by old sea terraces, forty-one in number, reaching up to 480 feet 
above the sea, and at a distance of about 120 miles from the axis 
of oscillation. To the south of this axis, no such terraces are visible, 
but on the other hand there are remains of human habitation, and 
other appearances indicating submergence. Dr Kane mentions that 
subsidence had also been observed on the eastern coast of South 
Greenland. The distance to what is now the south cape of Green- 
land, from the axis of movement, is about 1000 miles ; and if it be 
assumed that the amount of subsidence on the north side of the axis 
is the same as that of elevation on the south side, the subsidence at 
the south cape would be about 3200 feet. But this subsidence 
would most probably not be confined to Greenland. It might have 
extended into what is now the bed of the North Atlantic, verifying 
therefore Forbes’s remarkable inference, founded on physiological 
data, “ that land had at one time existed there, now submerged.” 
(3.) On the east side of the North Atlantic, there are also traces 
of subsidence. 
Thus Jukes says, that “ Around all the shores of Ireland, there is 
found evidence of a comparatively recent depression of the land, in 
the occurrence of undisturbed peat bogs beneath the sand of the 
sea, stretching below the level of the lowest spring tides. The 
stumps and roots of trees in the position of growth are found in this 
peat, clearly showing that it grew on dry land, and is now beneath 
the sea in consequence of depression” (“Manual of Geology,” p. 686). 
O’Flaherty, in reference to a traditionary belief existing in 1630,* 
says that “ Lough Lurgan is an inlet of the sea between Tuam and 
West Connaught, at the mouth of the Galway, stretching into the 
land, which was formerly dry land, until the Western Ocean broke 
over it. The remains of the barrier, are the three Isles of Aran. 
This traditional name (Lough Lurgan) is still used for Galway Bay ; 
and margining the bay, below low-water mark of spring tides, there 
are numerous bogs with oak corkers in situ at their base, in places 
over 12 feet deep.” 
Mr Kinahan, in his “ Geology of Ireland,” records that “ the 
Rev. W. Kilbride, vicar of Aran, has discovered in the principal 
* “Ogygia,” seu “Rerum Hibernicarum Chronologia, ” London, 1685. 
