What was done with all the gold thus garnered in sea fights before it reached the ports of Spain, is hard to know. Sometimes mysterious strangers appeared in the seaport towns of France and England and even the American colonies in their younger days, to spend money lavishly for a short time and then disappear as mysteriously as they came. These men were reputed to be pirate chiefs seeking relaxation from their customary life. Others of the buccaneers hoarded their wealth in hiding places known only to themselves, the secret of which must have died with them, while the gold remains undiscovered. All through the Florida keys and the West India islands, as well as along the coasts of Georgia and the Carolinas, traditions still exist in relation to these treasure hoards. Sanguine people are still digging in the sands of these beaches, in the hope that some day they will unearth a sea chest full of Spanish doubloons, or the golden ornaments stripped from Aztec idols. Some finds indeed have been made, but those who make them are not apt to reveal the secret which might guide another to a successful search. PIRATICAL RAIDS TROUBLE HAVANA. Having discovered the wealth that could be obtained by attacks upon the Spanish fleets, the pirates began to think of the cities which were themselves the source of much of this wealth. The result of this was that they began to make descents upon the coasts, not only of Cuba, but of the neighboring islands of Jamaica and Santo Domingo. The expense occasioned by the attempts to suppress these incursions became so great toward the end of the sixteenth century, that it became necessary to impose a special tax to cover it. Fortresses at all the fortified harbors were improved, and the power of the military officials increased as their importance increased, and that of the civil governors diminished. It was as a direct result of these conditions that the office of Captain General was created, in which the governor shared military and civil authority alike. Havana fortifications were hastened to completion and the preparations for defense began, which never have been materially improved to this day. The three fortresses of El Morro, La Punta and La Cabana were built before the end of the sixteenth century and still were standing as the most effective defenses of Havana when our war with Spain began. It was during the same period, that African negroes were first introduced into Cuba. Slavery had proved so severe upon the aborigines, that their numbers had almost reached the vanishing point, and there was a lack of sufficient labor for the cultivation of tobacco and sugar cane, the chief products of Spanish agriculture in the island. It was to promote the production of these new luxuries that the African slave trade was begun. A royal license from the King of Spain was obtained to guarantee the privilege of importing negroes.