The persons composing the expedition, being assembled at Kayee, a small town on the Gambia a little below Pisania, Park engaged a Mandingo priest, named Isaaco, who was also a travelling merchant and much accustomed to long inland journies, to serve as the guide to his caravan. On the 27th of April 1805, he took his departure from Kayee, and arrived in two days at Pisania, from whence he had set out for the interior of Africa nearly ten years before. Some of the practical difficulties of the march were apparent during this short journey: and he found it necessary to stop at Pisania six days (a delay which must have been highly inconvenient), to purchase additional beasts of burden, and make other arrangements for the expedition.
He quitted Kayee on the 4th of May, and arrived on the 11th at Madina, the capital of the kingdom of Woolli. The effects of the season had already become apparent; two of the soldiers having fallen ill of the dysentery on the 8th. On the 15th he arrived on the banks of the Gambia; and about this time lost one of his soldiers, by an epilepsy.
On the 26th, the caravan experienced a singular accident (almost unintelligible to an European) from the attack of a large swarm of bees; in consequence of which, besides that many of the people were most severely stung, seven of their beasts of burden perished or were lost; and owing to an accidental fire which was kindled in the confusion, the whole baggage was near being burnt. For half an hour it seemed as if the bees had put an end to the expedition. [Footnote: A similar accident from an attack of bees, though much less serious than the present, was witnessed by Park in his journey with the caravan of slaves from Kamalia to the Gambia, and is described in his Travels, p. 331.]
On the 28th of May, Park arrived at Badoo, where he mentions having had an opportunity of sending two letters to England by way of the Gambia. These letters were addressed to Sir Joseph Banks and Mrs. Park; and are as follows.
To Sir Joseph Banks.
Badoo, near Tambacunda, May 28th, 1805.
"A Slatee is going from this place in a few hours for the Gambia, and I have hired him to stop his asses till I write a few lines. We have had as prosperous an expedition thus far, as I could have expected; a short abridgement of our journey will serve to shew where we are.
[Here follow the names of the places where the caravan rested each night; the particulars of which are fully detailed in the Journal.]
"We are going this evening to Tambacunda. You must not imagine, my dear friend, from this hasty sketch that I have neglected astronomical observations; I have observed the latitude every two or three days, and have observed three eclipses of Jupiter's Satellites, which settle the longitude, by the help of the watch, to the nearest mile. I saw plenty of Shea trees yesterday for the first time since my return to Africa, the fruit being not yet ripe. The course of the Gambia is laid down on my chart too much to the south; I have ascertained nearly its whole course. I find that my former journeys on foot were underrated; some of them surprise myself, when I trace the same road on horseback. Sibikillin is 36' East of where it is laid down on the chart. I propose sending an abridged account of my day's transactions from Baniserile, to Lord Camden; but I request that nothing may be published till I return to England. A short time will decide the matter.
"I expect to reach the Niger on the 27th of June. You must excuse this hasty scrawl, as it is only meant to let you know that I am still alive and going forward in my journey. Please to let Mrs. Dickson know that I am well."