This account of the destination of these little vessels, though it was distressing at first, appeared to me afterwards, on cool reasoning, to be incredible. I thought that my informants wished to impose upon me, in order that I might make statements which would carry their own refutation with them, and that thus I might injure the great cause which I had undertaken. And I was much inclined to be of this opinion, when I looked again at the least of the two; for any person, who was tall, standing upon dry ground by the side of her, might have overlooked every thing upon her deck. I knew also that she had been built as a pleasure-boat for the accommodation of only six persons upon the Severn. I determined, therefore, to suspend my belief till I could take the admeasurement of each vessel. This I did; but lest, in the agitation of my mind on this occasion, I should have made any mistake, I desired my friend George Fisher to apply to the builder for his admeasurement also. With this he kindly complied. When he obtained it he brought it me. This account, which nearly corresponded with my own, was as follows:—In the vessel of twenty-five tons, the length of the upper part of the hold, or roof of the room, where the seventy slaves were to be stowed, was but little better than ten yards, or thirty-one feet. The greatest breadth of the bottom, or floor, was ten feet four inches; and the least five. Hence, a grown person must sit down all the voyage, and contract his limbs within the narrow limits of three square feet. In the vessel of eleven tons, the length of the room for the thirty slaves was twenty-two feet. The greatest breadth of the floor was eight, and the least four. The whole height from the keel to the beam was but five feet eight inches, three feet of which were occupied by ballast, cargo, and provisions, so that two feet eight inches remained only as the height between the decks. Hence, each slave would have only four square feet to sit in, and, when in this posture, his head, if he were a full-grown person, would touch the ceiling, or upper deck.

Having now received this admeasurement from the builder, which was rather more favourable than my own, I looked upon the destination of these little vessels as yet more incredible than before. Still the different persons, whom I occasionally saw on board them, persisted in it that they were going to Africa for slaves, and also for the numbers mentioned, which they were afterwards to carry to the West Indies themselves. I desired, however, my friends, George Fisher, Truman Harford, Harry Gandy, Walter Chandler, and others, each to make a separate inquiry for me on this subject; and they all agreed that, improbable as the account both of their destination, and of the number they were to take, might appear, they had found it to be too true. I had soon afterwards the sorrow to learn from official documents from the Custom-house, that these little vessels actually cleared out for Africa, and that now nothing could be related so barbarous of this traffic, which might not instantly be believed.

In pursuing my different objects there was one, which, to my great vexation, I found it extremely difficult to attain. This was the procuring of any assurance from those who had been personally acquainted with the horrors of this trade, that they would appear, if called upon, as evidence against it. My friend Harry Gandy, to whom I had been first introduced, had been two voyages, as I before mentioned; and he was willing, though at an advanced age, to go to London, to state publicly all he knew concerning them. But with respect to the many others in Bristol, who had been to the coast of Africa, I had not yet found one who would come forward for this purpose. There were several old Slave Captains living there, who had a great knowledge of the subject. I thought it not unreasonable that I might gain one or two good evidences out of these, as they had probably long ago left the concern, and were not now interested in the continuance of it; but all my endeavours were fruitless. I sent messages to them by different persons. I met them in all ways. I stated to them, that if there was nothing objectionable in the trade, seeing it laboured under such a stigma, they had an opportunity of coming forward and of wiping away the stain. If, on the other hand, it was as bad as represented, then they had it in their power, by detailing the crimes which attached to it, of making some reparation or atonement, for the part they had taken in it. But no representations would do. All intercourse was positively forbidden between us; and whenever they met me in the street, they shunned me as if I had been a mad dog. I could not for some time account, for the strange disposition which they thus manifested towards me; but my friends helped me to unravel it, for I was assured that one or two of them, though they went no longer to Africa as captains, were in part owners of vessels trading there; and, with respect to all of them, it might be generally said, that they had been guilty of such enormities, that they would be afraid of coming forward in the way I proposed, lest any thing should come out by which they might criminate themselves. I was obliged then to give up all hope of getting any evidence from this quarter, and I saw but little prospect of getting it from those, who were then actually deriving their livelihood from the trade: and yet I was determined to persevere; for I thought that some might be found in it who were not yet so hardened as to be incapable of being awakened on this subject. I thought that others might be found in it who wished to leave it upon principle, and that these would unbosom themselves to me: and I thought it not improbable that I might fall in with others, who had come unexpectedly into a state of independence, and that these might be induced, as their livelihood would be no longer affected by giving me information, to speak the truth.

I persevered for weeks together under this hope, but could find no one of all those, who had been applied to, who would have any thing to say to me. At length, Walter Chandler had prevailed upon a young gentleman, of the name of Gardiner, who was going out as surgeon of the Pilgrim, to meet me. The condition was, that we were to meet at the house of the former, but that we were to enter in and go out at different times, that is, we were not to be seen together.

Gardiner, on being introduced to me, said at once, that he had often wished to see me on the subject of my errand, but that the owner of the Pilgrim had pointed me out to him as a person whom he would wish him to avoid. He then laid open to me the different methods of obtaining slaves in Africa, as he had learned from those on board his own vessel in his first, or former, voyage. He unfolded also the manner of their treatment in the Middle passage, with the various distressing scenes which had occurred in it. He stated the barbarous usuage of the seamen as he had witnessed it, and concluded by saying, that there never was a subject which demanded so loudly the interference of the legislature as that of the Slave Trade.

When he had finished his narrative, and answered the different questions which I had proposed to him concerning it, I asked him, in as delicate a manner as I could, how it happened, that, seeing the trade in this horrible light, he had consented to follow it again? He told me frankly, that he had received a regular medical education, but that his relations, being poor, had not been able to set him up in his profession. He had saved a little money in his last voyage. In that, which he was now to perform, he hoped to save a little more. With the profits of both voyages together, he expected he should be able to furnish a shop in the line of his profession, when he would wipe his hands of this detestable trade.

I then asked him, whether, upon the whole, he thought he had judged prudently, or whether the prospect of thus enabling himself to become independent, would counterbalance the uneasiness which might arise in future? He replied, that he had not so much to fear upon this account. The trade, while it continued, must have surgeons. But it made a great difference both to the crew and to the slaves, whether these discharged their duty towards them in a feeling manner, or not. With respect to himself, he was sure that he should pay every attention to the wants of each. This thought made his continuance in the trade for one voyage longer more reconcilable. But he added, as if not quite satisfied, "Cruel necessity!" and he fetched a deep sigh.

We took our leave, and departed, the one a few minutes after the other. The conversation of this young man was very interesting. I was much impressed both by the nature and the manner of it. I wished to secure him, if possible, as an evidence for parliament, and thus save him from his approaching voyage: but I knew not what to do. At first, I thought it would be easy to raise a subscription to set him up. But then, I was aware that this might be considered as bribery, and make his testimony worth nothing. I then thought that the committee might detain him as an evidence, and pay him, in a reasonable manner, for his sustenance, till his testimony should be called for. But I did not know how long it would be before his examination might take place. It might be a year or two. I foresaw other difficulties also and I was obliged to relinquish what otherwise I should have deemed a prize.

On reviewing the conversation which had passed between us after my return home, I thought, considering the friendly disposition of Gardiner towards us, I had not done all I could for the cause; and, communicating my feelings to Walter Chandler, he procured me another interview. At this, I asked him, if he would become an evidence if he lived to return. He replied, very heartily, that he would. I then asked him, if he would keep a journal of facts during his voyage, as it would enable him to speak more correctly, in case he should be called upon for his testimony. He assured me he would, and that he would make up a little book for that purpose. I asked him, lastly, when he meant to sail. He said, as soon as the ship could get all her hands. It was their intention to sail to-morrow, but that seven men, whom the mates had brought drunk out of Marsh-street the evening before, were so terrified when they found they were going to Africa, that they had seized the boat that morning, and had put themselves on shore. I took my leave of him, entreating him to follow his resolutions of kindness both to the sailors and the slaves, and wished him a speedy and a safe return.

On going one day by the Exchange, after this interview with Gardiner, I overheard a young gentleman say to another, "that it happened on the coast, last year, and that he saw it." I wished to know who he was, and to get at him if I could. I watched him at a distance for more than half an hour, when I saw him leave his companion. I followed him till he entered a house. I then considered whether it would be proper, and in what manner, to address him when he should come out of it. But I waited three hours, and I never saw him. I then concluded that he either lodged where I saw him enter, or that he had gone to dine with some friend. I therefore took notice of the house, and, showing it afterwards to several of my friends, desired them to make him out for me. In a day or two I had an interview with him. His name was James Arnold. He had been two voyages to the coast of Africa for slaves; one as a surgeon's mate in the Alexander, in the year 1785, and the other as surgeon in the Little Pearl, in the year 1786, from which he had not then very long returned.