By 1665 there were three hundred New England vessels trading with Barbadoes, Virginia, Madeira, Acadia, etc., and 1,300 smaller craft were fishing at Cape Sable. Cod and mackerel were caught and salted. The best fish were sent to Malaga and the Canaries, the second sort to the Portugal Islands, and the worst to the Barbadoes there to be used in the diet of the negro slaves. At that time, the principal commodities produced in the Massachusetts Bay were fish and pipe-staves, masts, fir-boards, pitch, tar, pork, beef, and horses and corn which were sent to Virginia, Barbadoes, &c. Tobacco and sugar were taken in payment and shipped to England. Excellent masts were shipped from the Piscataqua River, and many pipe-staves. There were more than twenty sawmills located on that river and "much good timber was spoilt," reported an agent of Lord Arlington, the Secretary of State.[50] New England masts, 33 to 35 inches in diameter, at that time cost the Navy Commissioners from £95 to £115 per mast. The agent also reported that Boston, the chief town, was "built on a peninsula in the bottom of a bay, which is a good harbour and full of fish. The houses are generally wooden, the streets crooked, and neither days, months, seasons, churches, nor inns are known by their English names." [50] _Calendar of State Papers, Am. and W. I._ (1661-1668), 347. During the middle years of the seventeenth century the waters of the West Indies were covered with privateers commissioned to prey upon Spanish commerce. Not only did the home government issue these commissions but every Colonial governor as well, and not infrequently it was difficult to separate privateering from piracy. John Quelch, who was hanged in Boston for piracy, in 1704, preyed upon Portuguese commerce as he supposed in safety and not until he returned to Marblehead did he learn of the treaty of peace that made him a pirate. In 1653, Thomas Harding captured a rich prize sailing from Barbadoes and in consequence was tried in Boston for piracy, but saved his neck when he was able to prove that the vessel was Dutch and not Spanish. The town of Newport, R. I., frequently profited from the visits of known pirates, as in 1688, when Peterson, in a "barkalonga" of ten guns and seventy men, refitted at Newport and no bill could be obtained against him from the grand jury, as they were neighbors and friends of many of the men on board. Two Salem ketches also traded with him and a master of one brought into "Martin's Vineyard," a prize that Peterson, "the pirate, had taken in the West Indies."[51] Andrew Belcher, a well-known Boston merchant, and master of the ship _Swan_, paid Peterson £57, in money and provisions, for hides and elephants' teeth, taken from his plunder. [51] _Massachusetts Archives_, XXXV, folio 61.