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[ 278 1
Above tbe cave was a ftratum o f a
ftone mixed with pieces o f bafalt. We
made the following meaiurements :
F. 1»
From the water to the foot
o f the pillars, - 36
Height oi- the pillars, - 39
Height of the arch or vault
above the top of the pillars, 31
The ftratum above this, 34
From hence, a little farther north-
weft, we met with the largeft pillars
that are to be found in the whole
ifland. The place on which they
flood w£s likewife quite free, fo that
we were enabled to examine it. The
following was the refult o f our mea-
furement :
The weftern corner of Fingal’sCave;
1. From the water to the
foot of the pillars, - 12 10
2. Height of the pillafs, 37 3
3. The ftratum above them, '66 9
Farther weft ward :
I . The ftratum beneath the
■Rars, 11
2. Height of the pillars - 54 o
3. The ftratum above, - 61 6
2 » Still
8
[ 279
Still more weft ward : F. J.
1. Stratum beneath the plT
iars, - - - “ 1 7 ^
2. Height o f the pillars, 50 o
3. The ftratum above them, 51 x
Still more to the weft :
1. Stratum beneath the pillars,
- - ” ^ 9
2. Height o f the pillars, 55 i
3. The ftratum above, 54 7
The ftratum beneath the pillars here
mentioned is evidently tuff, which
had been heated by fire, and feems to
be interlarded, as it were, with fmall
bits o f bafalt; and the bed or ftratum
above the pillars, in which large pieces
of pillars are fometimes found irregularly
thrown together, and in unequal
diredions, is evidently nothing
elfe but lava. Though a prodigious
degree o f fire muft formerly have
been requifite to produce this upper
ftratum, yet there are not the leaft
traces in its exterior, the pillars having
been removed by it, for the whole
enormous mafs refts upon them.
When you move farther on, and
pafs the northern fide of the iiland,
S 4
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