At the Gran Canarie the _Nina_ was left to have her lateen sails changed to square ones; and the _Pinta_, it being found impossible to find a better vessel to take her place, was also left to be overhauled for her leaks, and to have her rudder again repaired, while Columbus visited Gomera, another of the islands. The fleet was reunited at Gomera on September 2. Here he fell in with some residents of the Ferro, the westermost of the group, who repeated the old stories of land occasionally seen from its heights, lying towards the setting sun. Having taken on board wood, water, and provisions, Columbus finally sailed from Gomera on the morning of Thursday, September 6. He seems to have soon spoken a vessel from Ferro, and from this he learned that three Portuguese caravels were lying in wait for him in the neighbourhood of that island, with a purpose, as he thought, of visiting in some way upon him, for having gone over to the interests of Spain, the indignation of the Portuguese king. He escaped encountering them. Up to Sunday, September 9, they had experienced so much calm weather, that their progress had been slow. This tediousness soon raised an apprehension in the mind of Columbus that the voyage might prove too long for the constancy of his men. He accordingly determined to falsify his reckoning. This deceit was a large confession of his own timidity in dealing with his crew, and it marked the beginning of a long struggle with deceived and mutinous subordinates, which forms so large a part of the record of his subsequent career. The result of Monday's sail, which he knew to be sixty leagues, he noted as forty-eight, so that the distance from home might appear less than it was. He continued to practise this deceit. The distances given by Columbus are those of dead reckoning beyond any question. Lieutenant Murdock, of the United States Navy, who has commented on this voyage, makes his league the equivalent of three modern nautical miles, and his mile about three-quarters of our present estimate for that distance. Navarrete says that Columbus reckoned in Italian miles, which are a quarter less than Spanish miles. The Admiral had expected to make land after sailing about seven hundred leagues from Ferro; and in ordering his vessels in case of separation to proceed westward, he warned them when they sailed that distance to come to the wind at night, and only to proceed by day. The log as at present understood in navigation had not yet been devised. Columbus depended in judging of his distance on the eye alone, basing his calculations on the passage of objects or bubbles past the ship, while the running out of his hour glasses afforded the multiple for long distances.