The detachment of the Royal African Corps, which was to escort the expedition, consisted of a Lieutenant and thirty-five privates. It was not to be expected that troops of a very superior quality could be furnished from a regiment which had been serving for any considerable time at a tropical station, such as Goree. But there is too much reason to believe that the men selected on the present occasion, notwithstanding the favourable opinion of them expressed by Park, and although they were the best that the Garrison could supply, were below the ordinary standard even of troops of this description; and that they were extremely deficient both in constitutional strength and vigour, and in those habits of sobriety, steadiness and good discipline which such a service peculiarly required. But besides the indifferent quality of the troops, there was another and more serious cause of alarm, from the unfavourable period at which, owing to a series of unforeseen delays, Park found himself obliged to enter on this expedition. This he was about to do, not actually during the rainy season; but with a great probability of being overtaken by it in the course of his journey; and with a positive certainty of encountering in the mean time, not only the great tropical heats, but also the _tornadoes_, or hurricanes, which always precede and follow the rainy season. These hurricanes, of which no idea can be formed from the experience of our temperate climates, occur more frequently, and with greater violence as the rainy period approaches; and are attended with considerable inconvenience, and occasionally with danger, to caravans travelling at that season.