[Sidenote: Evidence actually obtained.] For, notwithstanding all the obstacles to which I have been alluding, much oral testimony of the most valuable kind was obtained from persons who had been engaged in the actual conduct of the Slave Trade. And of by far the greatest part of those witnesses it may be truly said, that the more closely they were examined, and the more strongly their evidence was illustrated by light from other quarters, the more was it’s truth decisively established. So much I have thought it the more necessary to observe; because insinuations, to use the softest term, have been not seldom cast against some of the witnesses who gave evidence unfavourable to the Slave Trade, before the House of Commons.—Happily, however, some other sources of information were discovered; and the exact conformity of the intelligence derived from these, with that which has been already mentioned, gave to both indubitable confirmation. A very few men of science were found, who from motives of liberal curiosity had visited those parts of the coast of Africa where the Slave Trade was carried on. Some few also of His Majesty’s naval and military officers, who, while on service in Africa, had opportunities of obtaining useful information concerning the Slave Trade, consented to be examined. They were indeed little on shore, and they went to no great distance within the country; but still the facts they stated, were of the utmost importance; the more so, because of the credit which they reflect on the testimony of others, who, on account of their inferior rank in life, might in the judgment of some persons be more exceptionable witnesses. [Sidenote: Other sources of information:—Old Authors.] Lastly, there lay open to the Abolitionists another source of information, to which great attention was due; the acknowledged publications of several persons who at different periods had resided in Africa, some of them for many years, and in high stations, in the employ of the chief Slave trading Companies of the various European nations, and whose accounts had been given to the world long before the Slave Trade had become a subject of public discussion.