"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.
On the 23rd of the same month, after violent squalls which had driven every one on deck, Cook, aware of the pernicious effect of the damp of warm climates, and always on the alert to keep his crew in good health, gave orders to aerate (renew the air) in the between decks. He even had a fire lighted in order to smoke it, and dry it quickly, and not only took the precautions advocated by Lord Sandwich, and Sir Hugh Palliser, but also those which the experience of his last voyage suggested to him.
Thanks to all these efforts at prevention there was not a single sick case on board the Resolution when she arrived at the Cape of Good Hope on the 30th of October. Cook, in company with Captain Furneaux, and Messrs. Foster, went to pay a visit to the Dutch governor, Baron de Plettemberg, who placed all the resources of the colony at his disposal. There he found that two French ships, which had left the island of Mauritius in March, had touched at the Cape before proceeding to the southern seas where they were to prosecute discoveries, under command of Captain Marion.
During this stay in port, which was longer than they expected, Forster met the Swedish botanist Sparman, a pupil of Linnæus, and engaged him to accompany him, by promising him large pay. It is difficult to praise Forster's disinterestedness under these circumstances too highly. He had no hesitation in admitting a rival, and even paid his expenses, in order to add completeness to the studies in natural history which he wished to make in the countries he was about to visit.
Anchor was weighed on the 22nd of November, and the two ships resumed their course southwards, in search of Cape Circumcision, discovered by Captain Bouvet, on the 1st of January, 1739. As the temperature would rapidly become colder, Cook distributed the warm clothes, furnished by the Admiralty, to his sailors. From the 29th of November till the 6th of December a frightful tempest prevailed. The ships, driven out of their course, were carried to the east, to such a degree that they were forced to resume the search for Circumcision Cape. Another consequence of the bad weather, and of the sudden change from heat to extreme cold was the death of all the animals embarked at the Cape. And lastly, the sailors suffered so much from the damp, that it was necessary to increase the rations of brandy to stimulate them to work.
On the 10th of December, in 50° 40' southern latitude the first ice was met with. Rain and snow succeeded each other uninterruptedly. The fog soon became so dense, that the crews did not perceive a floating iceberg, until they were a mile past it. "One of these," says the narrative, "was not less than 200 feet high, 400 wide, and 2000 long.
"Taking it as probable, that this piece was of absolutely equal size, its depth beneath the water, would have been 1800 feet, and its height about 2000 feet, and from the dimensions just given its entire bulk must have contained 1600 million cubic feet of ice."