Now here, I at once saw, was a telescope to be used, and a
definite point of view, _admitting no variation_, from which to use
it. Nor did I hesitate to believe that the phrases, 'twenty-one
degrees and thirteen minutes,' and 'northeast and by north,' were
intended as directions for the levelling of the glass. Greatly excited
by these discoveries, I hurried home, procured a telescope, and
returned to the rock.
"I let myself down to the ledge, and found that it was impossible to
retain a seat on it unless in one particular position. This fact
confirmed my preconceived idea. I proceeded to use the glass. Of
course, the 'twenty-one degrees and thirteen minutes' could allude to
nothing but elevation above the visible horizon, since the horizontal
direction was clearly indicated by the words, 'northeast and by
north.' This latter direction I at once established by means of a
pocket-compass; then, pointing the glass as nearly at an angle of
twenty-one degrees of elevation as I could do it by guess, I moved it
cautiously up or down, until my attention was arrested by a circular
rift or opening in the foliage of a large tree that over-topped its
fellows in the distance. In the centre of this rift I perceived a
white spot, but could not, at first, distinguish what it was.
Adjusting the focus of the telescope, I again looked, and now made it
out to be a human skull.
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