Such were the measures taken by our sagacious Navigator for procuring a purity of air. It remains only to see in what manner he supplied pure water; another article of so great moment, that the thirsty voyager, upon his salt and putrid diet, with a short allowance of this element, and that in a corrupted Rate, must account a plentiful provision of fresh water to be indeed the best of things.
Captain Cook was not without an apparatus for distilling sea-water, and though he could not obtain nearly so much as was expected from the invention, yet he sometimes availed himself of it; but for the most of his voyage he was otherwise provided. Within the Southern Tropic, in the Pacific Ocean, he found so many islands, and those so well stored with springs, that, as I have hinted before, he seldom was without a sufficiency of fresh water for every useful purpose. But not satisfied with plenty, he would have the purest; and therefore whenever an opportunity offered, he emptied what he had taken in but a few days before, and filled his casks anew. But was he not above four months in his passage from the Cape of Good Hope to New Zeeland, in the frozen zone of the South, without once seeing land? and did he not actually complete his circumnavigation, in that high latitude, without the benefit of a single fountain? Here was indeed a wonder of the Deep! I may call it the Romance of his Voyage! Those very shoals, fields, and floating mountains of ice, among which he steered his perilous course, and which presented such terrifying prospects of destruction; those, I say, were the very means of his support, by supplying him abundantly with what he most wanted. It had been said that those stupendous masses of ice, called islands or mountains, melted into fresh water, though Crantz, the relator of that paradox, did not imagine they originated from the sea, but that they were first formed in the great rivers of the North, and being carried down into the ocean, were afterwards increased to that amazing height by the snow that fell upon them*. But that all frozen sea-water would thaw into fresh, had either never been asserted, or had met with little credit. This is certain that Captain Cook expected no such transmutation, and therefore was agreeably surprised to find he had one difficulty less to encounter, that of preserving the health of his men so long on salt-provisions, with a scanty allowance of corrupted water, or what he could procure by distillation The melted ice of the sea was not only fresh but soft, and so wholesome, as to show the fallacy of human reason unsupported by experiments. An ancient of great authority had assigned, from theory, bad qualities to melted snow; and from that period to the present times, this prejudice extended to ice had not been quite removed.
[* Hist. of Greenland, b. I. ch, ii. para 11, 12.]
In this circumnavigation, amidst sleets and falls of snow, fogs, and much moist weather, the Resolution enjoyed nearly the same good state of health she had done in the temperate and torrid zones. It appears only from the journal of the Surgeon, that towards the end of the first course* some of the crew began to complain of the scurvy; but the disease made little progress, except in one who had become early an invalid from another cause. The other disorders were likewise inconsiderable, such as common colds, slight diarrhoeas, and intermittents that readily yielded to the Bark: there were also some fevers of a continued form, but which by timely care never rose to an alarming height. Much commendation is therefore due to the attention and abilities of Mr. PATTEN, the Surgeon of the Resolution, for having so well seconded his Captain in the discharge of his duty. For it must be allowed, that in despite of the best regulations and the best provisions, there will always be among a numerous crew, during a long voyage, some casualties more or less productive of sickness; and that unless there be an intelligent medical assistant on board, many under the wisest Commander will perish, that otherwise might have been saved.
[* Viz. The voyage between the Cape of Good Hope and New Zealand.]
These, Gentlemen, are the reflections I had to lay before you on this interesting subject; and if I have encroached on your time, you will recollect that much of my discourse hath been employed in explaining some things but just mentioned by Captain Cook, and in adding other materials, which I had procured partly from himself, and partly, after his departure, from those intelligent friends he alludes to in his Paper. This was my plan; which, as I have now executed, you will please to return your thanks to those gentlemen, who, on your account, so cheerfully communicated to me their observations.
As to your acknowledgments to Captain Cook, and your high opinion of his deserts, you will best testify them by the honourable distinction suggested by your Council, in presenting him with this medal: for I need not gather your suffrages, since the attention with which you have favoured me hath abundantly expressed your approbation. My satisfaction therefore had been complete, had he himself been present to receive the honours you now confer upon him. But you are apprized that our brave and indefatigable Brother is at this instant far removed from us, anticipating, I may say, your wonted request on these occasions, by continuing his labours for the advancement of Natural Knowledge, and for the honour of this Society: as you may be assured, that the object of his new enterprize is not less great, perhaps still greater than either of the former.
Allow me then, GENTLEMEN, to deliver this medal, with his unperishing name engraven upon it, into the hands of one who will be happy to receive that trust, and to know that this respectable Body never more cordially nor more meritoriously bestowed that faithful symbol of their esteem and affection. For if Rome decreed the Civic Crown to him who saved the life of a single citizen, what wreaths are due to that Man, who, having himself saved many, perpetuates in your Transactions the means by which Britain may now, on the most distant voyages, preserve numbers of her intrepid sons, her Mariners; who, braving every danger, have so liberally contributed to the fame, to the opulence, and to the maritime empire, of their Country*.
[* Here followed Captain Cook's Paper, which was presented to the Society, and is inserted in part 2. vol. 1xvi. of the Philosophical Transactions; but as the Substance of that Publication is now contained in the last pages of Captain Cook's Voyage, it was judged unnecessary to repeat it here. The only material circumstance of Captain Cook's communication to the Society, omitted in his journal, is the following Extract of a Letter which he wrote to the President, just before his late embarkation, dated Plymouth Sound, July 7, 1776; and is as follows:
"I entirely agree with you, that the dearness of the Rob of lemons, and of oranges, will hinder them from being furnished in large quantities; but I do not think this so necessary, for though they may assist other things, I have no great opinion of them alone. Nor have I a higher opinion of vinegar: my people had it very sparingly during the late voyage; and towards the latter part, none at all; and yet we experienced no ill effects from the want of it. The custom of washing the inside of the ship with vinegar I seldom observed, thinking that fire and smoke answered the purpose much better.">[