On the next day, we witnessed a curious natural illusion. The look-out called land ho! from the mast-head. The officer of the watch saw the land at the same time from the deck, and sent a midshipman below to inform me that we had made "high land, right ahead." I came at once upon deck, and there, sure enough, was the land--a beautiful island, with its blue mountains, its plains, its wood-lands, its coast, all perfect. It was afternoon. The weather had been stormy, but had partially cleared. The sun was near his setting, and threw his departing rays full upon the newly discovered island, hanging over it, as a symbol that, for a time, there was to be a truce with the storm, a magnificent rainbow. So beautiful was the scene, and so perfect the illusion--there being no land within a couple of hundred miles of us--that all the crew had come on deck to witness it; and there was not one of them who would not have bet a month's pay that what he looked upon was a reality.
The chief engineer was standing by me looking upon the supposed landscape, with perfect rapture. Lowering the telescope through which I had been viewing it, I said to him, "You see, now, Mr. F., how often men are deceived. You would no doubt swear that that is land." "Why should I not, sir?" said he. "Simply," rejoined I, "because it is Cape Fly-away." He turned and looked at me with astonishment, as though I were quizzing him, and said, "You surely do not mean to say, Captain, that that is not land; it is not possible that one's senses can be so much deceived." "Like yourself, I should have sworn it was land, if I did not know, from the position of the ship, that there is no land within a couple of hundred miles of us." Reaching out his hand for my glass, I gave it to him, and as he viewed the island through it, I was much amused at his ejaculations of admiration, now at this beauty, and now at that. "Why," said he, "there is the very coast, sand beach and all, with beautiful bays and indentations, as though inviting the _Sumter_ to run in and anchor." As the sun sank lower and lower, withdrawing now one ray, and now another, first the rainbow began to disappear, and then the lower strata of the island to grow a little gray, and then the upper, until, as the sun dipped, the whole gorgeous fabric, of mountain, woodland, plain, and coast, was converted into a leaden-colored cloud-bank. The engineer handing me my glass, said, "Captain, I will be a cautious witness hereafter, in a court of justice, when I am questioned as to a fact, which has only been revealed to me through a single sense." "I see," I replied, "that you are becoming a philosopher. Many metaphysicians have maintained that all nature is a mere phantasmagoria, so far as our senses are capable of informing us."
