About this time, by the advice of Sir Joseph Banks, he became a candidate for the Botanical Chair at Edinburgh, vacant by the decease of Dr. Rutherford. In his efforts to obtain the appointment he failed. This circumstance probably hastened his determination of again setting out for Africa; and, in 1803, a favourable opportunity seemed to be afforded. He received a letter from the Colonial Office, requiring his immediate presence in London. He had an interview with Lord Hobart, then Colonial Secretary, who informed him that it was the intention of Government to organize an expedition for discovery in Africa, to be placed under his superintendence. This proposal was exactly what Park wished; the subject, in all its bearings, had been considered by him in almost hourly meditations; he resolved inwardly to accept the proposal, but asked a brief space to consult his family and friends. He returned immediately to Scotland, and again journeying to London, at once closed with the offer, and proceeded to make his preparations, expecting in a few weeks to set sail for Africa. But the usual delays of office took place, and the expedition was only announced to sail from Portsmouth about the end of February. Before that period arrived, the impatient traveller was mortified to find that the important political changes which were then in agitation would at least defer, if not altogether destroy his projects. This blow was the more severe, as the stores and troops had been already embarked.

Mr. Pitt was made First Commissioner of the Treasury, and Chancellor of the Exchequer in May. When the commotion caused by this change had subsided a little, Government was able to direct its attention to subjects less immediately pressing, and among the rest, to African discovery. Park received an intimation from the Colonial Office, that the intention of sending out an expedition had by no means been lost sight of; and, in the meantime, he was advised to direct his particular attention to those branches of knowledge which might facilitate the undertaking, with the understanding that all necessary expenses would be defrayed. The earliest period at which he could possibly set out was September, and he determined diligently to improve the interval. He chiefly directed his attention to the method of taking astronomical observations, and to the study of the Arabic language. For the latter purpose, he engaged a native of Mogadore, Sidi Omback Boubi, who then resided in London, and had served as the interpreter to Elphi Bey, the Mameluke ambassador from Cairo, to accompany him to Scotland. Park and his oriental companion arrived at Peebles in March, and resided there till about the middle of May; he then removed to Fowlshiels, where he remained till the expected summons from the Secretary of State should reach him. Sidi Omback appeared quite a phenomenon to the inhabitants of Peebles. He was a firm adherent of the Mahometan faith, and scrupulous to an excess; observing rigidly the Prophet's prohibitions respecting wine and spirits, and eating no meat which had not been killed by his own hand. The method in which he performed this operation was somewhat peculiar:—having stalked solemnly into the market, and pitched upon his animal, he turned its head towards the east, muttered over it a short prayer, and then cut off its head, rejecting the blood as unclean. He had the greatest aversion to prints and paintings, and nearly stabbed a young man who was bold enough to take a sketch of his peculiar visage. He punctually performed his devotions according to the fashion of his own country, and professed to be a great interpreter of dreams and omens. In one instance, he proved a true prophet, for he said more than once, that if Park went a second time to Africa, he would never return; and though urgently requested by Park to join the expedition, he refused.

When Sir Walter Scott first became acquainted with Park, he was living in seclusion at the farm of Fowlshiels, nearly opposite Newark Castle. They soon became much attached to each other; and Scott supplied some interesting anecdotes of their brief intercourse to the late Mr. Wishaw, the editor of Park's posthumous Journal, with which, says Mr. Lockhart, I shall blend a few minor circumstances which I gathered from him in conversation long afterwards. "On one occasion," he says, "the traveller communicated to him some very remarkable adventures which had befallen him in Africa, but which he had not recorded in his book." On Scott's asking the cause of this silence, Mungo answered, "That in all cases where he had information to communicate which he thought of importance to the public, he had stated the facts boldly, leaving it to his readers to give such credit to his statements as they might appear justly to deserve; but that he would not shock their faith, or render his travels more marvellous, by introducing circumstances which, however true, were of little or no moment, as they related solely to his own personal adventures and escapes," This reply struck Scott as highly characteristic of the man; and though strongly tempted to set down some of these marvels for Mr. Wishaw's use, he, on reflection, abstained from doing so, holding it unfair to record what the adventurer had deliberately chosen to suppress in his own narrative. He confirms the account given by Park's biographer of his cold and reserved manners to strangers, and in particular, of his disgust with the indirect questions which curious visitors would often put to him upon the subject of his travels. "This practice," said Mungo, "exposes me to two risks,—either that I may not understand the questions meant to be put, or that my answers to them may be misconstrued;" and he contrasted such conduct with the frankness of Scott's revered friend, Dr. Adam Ferguson, who, the very first day the traveller dined with him at Hallyards, spread a large map of Africa on the table, and made him trace out his progress thereupon, inch by inch, questioning him minutely as to every step he had taken. "Here, however," says Scott, "Dr. F. was using a privilege to which he was well entitled by his venerable age and high literary character, but which could not have been exercised with propriety by any common stranger."

Calling one day at Fowlshiels, and not finding Park at home, Scott walked in search of him along the banks of the Yarrow, which in that neighbourhood passes over various ledges of rock, forming deep pools and eddies between them. Presently he discovered his friend standing alone on the bank, plunging one stone after another into the water, and watching anxiously the bubbles as they rose to the surface. "This," said Scott, "appears but an idle amusement for one who has seen so much stirring adventure." "Not so idle, perhaps, as you suppose," answered Mungo. "This was the manner in which I used to ascertain the depth of a river in Africa before I ventured to cross it, judging whether the attempt would be safe by the time the bubbles of air took to ascend." At this time, Park's intention of a second expedition had never been revealed to Scott, but he instantly formed the opinion that these experiments on Yarrow were connected with some such purpose.

His thoughts had always continued to be haunted with Africa. He told Scott, that whenever he awoke suddenly in the night, owing to a nervous disorder with which he was troubled, he fancied himself still a prisoner in the tent of Ali; but when the Poet expressed some surprise that he should design again to revisit those scenes, he answered, that he would rather brave Africa and all its horrors, than wear out his life in long and toilsome rides over the hills of Scotland, for which the remuneration was hardly enough to keep soul and body together.

Towards the end of autumn, when about to quit his country for the last time, Park paid Scott a farewell visit, and slept at Ashestiel. Next morning his host accompanied him homewards over the wild chain of hills between the Tweed and the Yarrow. Park talked much of the new scheme, and mentioned his determination to tell his family that he had some business for a day or two in Edinburgh, and send them his blessing from thence, without returning to take leave. He had married, not long before, a pretty, amiable woman; and when they reached the William Hope Ridge, "the autumnal mist floating heavily and slowly down the valley of the Yarrow," presented to Scott's imagination "a striking emblem of the troubled and uncertain prospect which his undertaking afforded." He remained, however, unshaken; and at length they reached the spot at which they had agreed to separate. A small ditch divided the moor from the road, and, in going over it, Park's horse stumbled, and nearly fell. "I am afraid, Mungo," said the Sheriff, "that is a bad omen." To which he answered, smiling, "Freits (omens) follow those who look to them." With this expression Mungo struck the spurs into his horse, and Scott never saw him again. His parting proverb, by the way, was probably suggested by one of the Border ballads, in which species of lore he was almost as great a proficient as the Sheriff himself; for we read in "Edom o' Gordon,"—"Them look to freits, my master dear. Then freits will follow them."[26]

[26] Lockhart's Life of Scott, Vol. II.

In the beginning of September, Park received the summons from the Colonial Office, and had a satisfactory interview with Lord Camden. He had previously, at Lord Camden's request, given in to him a memorial, comprising a statement of his views concerning the objects of the expedition, the means which he would require for his purpose, and the manner in which the plans of Government were to be carried into execution. The object of his journey. Park stated to be the extension of British commerce, and the enlargement of geographical knowledge; particular attention was to be paid to the state of the interior, the course of the Niger, and the character and situation of the towns upon its banks. The means Park requested were thirty European soldiers, six carpenters, fifteen or twenty Goree negroes, fifty asses, and six horses or mules. Each man was to be provided with gun, pistols, and suitable clothing. He gave in also a list of other articles which he required, comprising harness and equipments for the asses, carpenters tools, and cordage, with other stores, for building two boats of forty feet length, to sail down the Niger, and a number of articles of commerce to procure supplies from the natives, and for presents to their chiefs, such as coloured cloth, amber, gold, and glass beads, arms and ammunition, mirrors, knives, scissors, &c. Park's proposed route was to proceed up the Gambia, cross the country to the Niger, when they were to sail down the river till they came to its termination. If, as Park supposed, in place of being lost, according to Major Rennel's theory, in some imaginary lake called Margara, it took a southerly direction, and might prove to be the river Congo; it was his intention to embark on board some slave-ship, and return, either by the way of St. Helena or the West Indies. Major Rennel earnestly advised Park against the expedition, but without success, and indeed, upon the Major's theory, the plan was utterly impracticable. Some have censured Park for going on an expedition, which at the outset was pronounced to be hopeless; and these "prophets of evil" claimed abundant credit for their sagacity. But Park had made up his mind, and was not to be turned aside from his purpose. Fatally confident, as the event proved, in his own resources, he was not to be daunted by the formidable array of difficulties which he must have well known he would have to face; and though somewhat disheartened for a time by these representations, he was consoled by the approbation of Sir Joseph Banks, and other scientific men.

Orders were now given for the completion of the arrangements; but vexations and fatal delays again occurred, which contributed most materially to diminish the chances of the success of the expedition. It was now impossible that they could be landed in Africa before the rainy season had commenced; and it was only after three months impatient waiting that Park got these final instructions:—

"Downing Street, 2d January 1805.