In the morning our boat was ready: it was high and strong. Sir Allan victualled it for the day, and provided able rowers. We now parted from the young Laird of Col, who had treated us with so much kindness, and concluded his favours by consigning us to Sir Allan. Here we had the last embrace of this amiable man, who, while these pages were preparing to attest his virtues, perished in the passage between Ulva and Inch Kenneth.

Sir Allan, to whom the whole region was well known, told us of a very remarkable cave, to which he would show us the way. We had been disappointed already by one cave, and were not much elevated by the expectation of another.

It was yet better to see it, and we stopped at some rocks on the coast of Mull. The mouth is fortified by vast fragments of stone, over which we made our way, neither very nimbly, nor very securely. The place, however, well repaid our trouble. The bottom, as far as the flood rushes in, was encumbered with large pebbles, but as we advanced was spread over with smooth sand. The breadth is about forty-five feet: the roof rises in an arch, almost regular, to a height which we could not measure; but I think it about thirty feet.

This part of our curiosity was nearly frustrated; for though we went to see a cave, and knew that caves are dark, we forgot to carry tapers, and did not discover our omission till we were wakened by our wants. Sir Allan then sent one of the boatmen into the country, who soon returned with one little candle. We were thus enabled to go forward, but could not venture far. Having passed inward from the sea to a great depth, we found on the right hand a narrow passage, perhaps not more than six feet wide, obstructed by great stones, over which we climbed and came into a second cave, in breadth twenty-five feet. The air in this apartment was very warm, but not oppressive, nor loaded with vapours. Our light showed no tokens of a feculent or corrupted atmosphere. Here was a square stone, called, as we are told, Fingal’s Table.

If we had been provided with torches, we should have proceeded in our search, though we had already gone as far as any former adventurer, except some who are reported never to have returned; and, measuring our way back, we found it more than a hundred and sixty yards, the eleventh part of a mile.

Our measures were not critically exact, having been made with a walking pole, such as it is convenient to carry in these rocky countries, of which I guessed the length by standing against it. In this there could be no great errour, nor do I much doubt but the Highlander, whom we employed, reported the number right. More nicety however is better, and no man should travel unprovided with instruments for taking heights and distances.

There is yet another cause of errour not always easily surmounted, though more dangerous to the veracity of itinerary narratives, than imperfect mensuration. An observer deeply impressed by any remarkable spectacle, does not suppose, that the traces will soon vanish from his mind, and having commonly no great convenience for writing, defers the description to a time of more leisure, and better accommodation.

He who has not made the experiment, or who is not accustomed to require rigorous accuracy from himself, will scarcely believe how much a few hours take from certainty of knowledge, and distinctness of imagery; how the succession of objects will be broken, how separate parts will be confused, and how many particular features and discriminations will be compressed and conglobated into one gross and general idea.

To this dilatory notation must be imputed the false relations of travellers, where there is no imaginable motive to deceive. They trusted to memory, what cannot be trusted safely but to the eye, and told by guess what a few hours before they had known with certainty. Thus it was that Wheeler and Spon described with irreconcilable contrariety things which they surveyed together, and which both undoubtedly designed to show as they saw them.

When we had satisfied our curiosity in the cave, so far as our penury of light permitted us, we clambered again to our boat, and proceeded along the coast of Mull to a headland, called Atun, remarkable for the columnar form of the rocks, which rise in a series of pilasters, with a degree of regularity, which Sir Allan thinks not less worthy of curiosity than the shore of Staffa.