The King decided (1785) that a voyage should be undertaken; two ships of the navy, LA BOUSSOLE and L'ASTROLABE, were selected for the purpose; and, on the recommendation of the Marquis de Castries—remember Madame la Marquise!—Laperouse was chosen for the command.
All three of the men who ordered, planned and executed the voyage, the King, the scholar, and the officer, were devoted students of the work and writings of Cook; and copies of his VOYAGES, in French and English, were placed in the library of navigation carried on board the ships for the edification of the officers and crews. Over and over again in the instructions prepared—several times on a page in some places—appear references to what Cook had done, and to what Cook had left to be done; showing that both King Louis and Fleurieu knew his voyages and charts, not merely as casual readers, but intimately. As for Laperouse himself, his admiration of Cook has already been mentioned; here it may be added that when, before he sailed, Sir Joseph Banks presented him with two magnetic needles that had been used by Cook, he wrote that he "received them with feelings bordering almost upon religious veneration for the memory of that great and incomparable navigator." So that, we see, the extent of our great sailor's influence is not to be measured even by his discoveries and the effect of his writings upon his own countrymen. He radiated a magnetic force which penetrated far; down to our own day it has by no means lost its stimulating energy.
In the picture gallery at the Palace of Versailles, there is an oil painting by Mansiau, a copy of which may be seen in the Mitchell Library, Sydney. It is called "Louis XVI giving instructions to Monsieur de Laperouse for his voyage around the world." An Australian statesman who saw it during a visit to Paris a few years ago, confessed publicly on his return to his own country that he gazed long upon it, and recognised it as being "of the deepest interest to Australians." So indeed it is. A photograph of the picture is given here.
The instructions were of course prepared by Fleurieu: anyone familiar with his writings can see plenty of internal evidence of that. But Louis was not a little vain of his own geographical knowledge, and he gave a special audience to Laperouse, explaining the instructions verbally before handing them to him in writing.
They are admirably clear instructions, indicating a full knowledge of the work of preceding navigators and of the parts of the earth where discovery needed to be pursued. Their defect was that they expected too much to be done on one voyage. Let us glance over them, devoting particular attention to the portions affecting Australasia.
The ships were directed to sail across the Atlantic and round Cape Horn, visiting certain specified places on the way. In the Pacific they were to visit Easter Island, Tahiti, the Society Islands, the Friendly and Navigator groups, and New Caledonia. "He will pass Endeavour Strait and in this passage will try to ascertain whether the land of Louisiade (the Louisiade Archipelago), be contiguous to that of New Guinea, and will reconnoitre all this part of the coast from Cape Deliverance to the Island of St. Barthelomew, east-northeast of Cape Walsh, of which at present we have a very imperfect knowledge. It is much to be wished that he may be able to examine the Gulf of Carpentaria."
He was then to explore the western shores of New Holland. "He will run down the western coast and take a closer view of the southern, the greater part of which has never been visited, finishing his survey at Van Diemen's Land, at Adventure Bay or Prince Frederick Henry's, whence he will make sail for Cook's Strait, and anchor in Queen Charlotte's Sound, in that Strait, between the two islands which constitute New Zealand."
That direction is especially important, because if Laperouse had not perished, but had lived to carry out his programme, it is evident that he would have forestalled the later discoveries of Bass and Flinders in southern Australia. What a vast difference to the later course of history that might have made!
After leaving New Zealand he was to cross the Pacific to the north-west coast of America. The programme included explorations in the China Sea, at the Philippines, the Moluccas and Timor, and contemplated a return to France in July or August, 1789, after a voyage of about three years.
But although his course was mapped out in such detail, discretion was left to Laperouse to vary it if he thought fit. "All the calculations of which a sketch is given here must be governed by the circumstances of the voyage, the condition of the crews, ships and provisions, the events that may occur in the expedition and accidents which it is impossible to foresee. His Majesty, therefore, relying on the experience and judgment of the sieur de Laperouse, authorises him to make any deviation that he may deem necessary, in unforeseen cases, pursuing, however, as far as possible, the plan traced out, and conforming to the directions given in the other parts of the present instructions."