In the harbor, next morning, a sunken wreck was pointed out to us, which was partially visible at low tide, not far from the shore. Only the ribs and stanchions are still held together by the stout keel timbers and lower sheathing. This wreck has lain there unheeded for years, yet what a story these old timbers might tell, had they only a tongue with which to give voice to their experience!--literally the experience of ages. We refer to the remains of the old St. Paul, one of the ships of the great Spanish Armada that Philip II. sent to England in 1588, being one of the very few of that famous flotilla that escaped destruction at the time. What a historical memento is the old wreck! After a checkered career, in which this ancient craft had breasted the waves of innumerable seas and withstood the storms of nearly three centuries, she was burned to the water's edge here in the harbor of Santiago a few years since, and sunk, where her remains now lie, covered with slime and barnacles,--a striking emblem of the nation whose flag she once proudly bore. During the last years of her career afloat she was used for transporting troops from Europe, and as a Spanish guard-ship in these seas by the local government. It is doubtful if it is generally known that this relic of the Spanish Armada is in existence. Curio-hunters, once put upon the scent, will probably soon reduce these ancient timbers to chips, and a crop of canes and snuff-boxes, more or less hideous and more or less counterfeit, will ensue. Here we got our first experience of the present currency,--the valueless circulating medium of Cuba. When one has occasion to visit the island it is best to take American funds, either in bank-bills or gold, sufficient to meet all ordinary expenses. Our bank-bills and our gold are both at a premium. This will also save all necessity for drawing on home through any local bankers, who have a way of charging for the accommodation quite after the style of everything Spanish. The hotel-keepers will require their pay on the basis of Spanish gold, but will cheerfully allow a premium of six per cent. on American gold or American bank-bills. As to the banks in Cuba, all are shaky, so to speak; several have lately failed, and the others might as well do so. It is not long since the president of the Havana Savings Bank placed a pistol at his temple and blew his brains out. Mercantile credit may be said to be dead, and business nearly at a standstill. Commercial honesty is hardly to be expected from a bankrupt community, where the people seem only to be engaged in the sale and purchase of lottery tickets, a habit participated in by all classes. What little gold and silver coin there is found in circulation is mutilated; every piece of money, large and small, has been subjected to the ingenious punch, and thus has lost a portion of its intrinsic value. American gold and silver, not having been thus clipped, justly commands a six per cent. premium.