Cook says, "I received my instructions at Plymouth dated 25th June. They enjoined my immediate departure for the island of Madeira. To ship wine there, and thence to proceed to the Cape of Good Hope, where I was to let the crew have a spree on shore, and obtain the provisions and other stores I needed. To advance southwards and endeavour to find Circumcision Cape, which was said to have been discovered by M. Bouvet, in the 54 degrees southern parallel, and about 11 degrees 20 minutes east longitude, reckoning from Greenwich. If I found this cape, to ascertain whether it was part of the continent or an island. Should it prove the former, to neglect no opportunity of investigating its possible extent. To collect facts of every kind which might be useful to navigation and commerce, or would tend to the progress of the natural sciences. I was desired to observe the spirit, temperament, character, and means of the inhabitants, should there be any, and to use every fair means of forming friendly alliances with them. "My instructions proceeded to enjoin me to seek discoveries in the east or west, according to the position in which I might find myself, and advised my nearing the south pole as much as possible, and as long as the condition of the ships, the health of the crew, and the provisions allowed of my doing so. To be careful in any case to reserve sufficient provisions to reach some known port, where I might refit for my return to England. "In addition, I was ordered, if I found Circumcision Cape to be an island, or if I did not succeed in finding it, in the first case to take the necessary bearings, and in both to sail southward as long as I still hoped to find the continent. Then to proceed eastward, to look for this continent, and to discover the islands which might be situated in this part of the southern hemisphere. To remain in high latitudes and to prosecute my discoveries, as had been already said, as near the pole as possible, until I had completed the navigation of the world, and finally to repair to the Cape of Good Hope, and from thence to Spithead." Cook left Plymouth harbour on the 13th of July, and on the 29th of the same month he arrived at Funchal, in Madeira. Here he took in provisions, and continued his route southwards. But being shortly convinced that his supply of water would not hold out until he reached the Cape of Good Hope, he determined to break the voyage by putting in at Cape Verd Islands, and on the 10th of August he anchored in Praya Port, which he left four days later. Cook availed himself of his stay in this port, as he usually did, to collect every fact which might be useful to navigators. His description is the more valuable now, as these parts have completely changed in character, and the conditions of a stay in port have been greatly modified by the improvements accomplished there.