In 1687 Don Juan de Aila volunteered to go to Spain and procure for the colony the assistance of men and supplies, of which it stood in great need. This he did, providing his own vessel, and, as a reward for his efforts, the Spanish crown granted him a permit to import merchandise free of duty, and also to carry with him twelve negro slaves. “By a mischance, he was only able to carry one negro there, with the troops and other cargo, and was received in the city with universal joy. This was the first occasion of the reception of African slaves.”[12] The Count de Galvez, Viceroy of New Spain (Mexico including Florida) seems to have felt great interest in the Spanish settlement of St. Augustine. Upon his recommendation the council of the Indies appropriated in 1691 ten thousand dollars for building a sea-wall from the castle to the city, and two years after a further sum of six thousand dollars for building a look-out. The work upon the sea-wall had already been begun by the governor, Don Diego de Quiroga-y-Lozada, with what means the local authorities and citizens could supply. In 1690, finding the sea was making great encroachments, and threatened to undermine the houses, having washed with great force and effect upon the light sands of the water-front, and even up to the very dwellings, the governor called a meeting of the chief citizens of the town to take the subject under consideration. It was decided by the chief men that, in order to prevent the total loss of the great sums that had already been invested in the fort and other defenses of the town, and to protect the place from gradual destruction, and being unfitted for habitation, it was necessary to build a wall from the glacis of the fort to the public square on the north of the city, which should be a defense against the force of the sea. Two thousand dollars were contributed, of which the soldiers are said to have donated seventeen hundred, although their wages were six years in arrears. The wall, which was begun at this time, was a slight structure, and extended only to the present basin in front of the plaza. To one who has seen the water, in severe north-easters, dashing over the present sea-wall, it seems strange that the Spaniards had not built a more extensive and efficacious protection against the sea for their metropolitan town in North America. One of the old citizens informs me that the tide rose so high during a severe storm in the fall of 1811, that boats passed freely over the streets, and the inhabitants were all obliged to withdraw from the lower story of the houses.