even in vessels from the windward coast of Africa; but in those which sail to Bonny, Benin, and the Calabars, from whence the greatest proportion of the slaves are brought, this mortality is increased by a variety of causes, (of which the greater length of the voyage is one,) and is said to be twice as large which supposes that in every hundred the deaths annually amount to no less than eighty-six.  Yet even the former comparatively low mortality; of which the counsel speaks with so much satisfaction, as a proof of the kind and compassionate treatment of the slaves, even this indolent and lethargic destruction gives to the march of death seventeen times its usual speed.  It is a destruction, which, if general but for ten years, would depopulate the world, blast the purposes of its creation, and extinguish the human race.”

After having gone with great ability through the other branches of the subject, he concluded in the following manner:—­“Thus I have considered the various objections which have been stated to the bill, and am ashamed to reflect that it could be necessary to speak so long in defence of such a cause; for what, after all, is asked by the proposed regulations?  On the part of the Africans, the whole of their purport is, that they whom you allow to be robbed of all things but life, may not unnecessarily and wantonly be deprived of life also.  To the honour; to the wisdom, to the feelings of the house, I now make my appeal, perfectly confident that you will not tolerate, as senators, a traffic which, as men, you shudder to contemplate, and that you will not take upon yourselves the responsibility of this waste of existence.  To the memory of former parliaments the horrors of this traffic will be an eternal reproach; yet former parliaments have not known, as you on the clearest evidence now know, the dreadful nature of this trade.  Should you reject this bill, no exertions of yours to rescue from oppression the suffering inhabitants of your eastern empire; no records of the prosperous state to which, after a long and unsuccessful war, you have restored your native land; no proofs; however splendid, that under your guidance Great Britain has recovered her rank, and is again the arbitress of nations, will save your names from the stigma of everlasting dishonour.  The broad mantle of this one infamy will cover with substantial blackness the radiance of your glory, and change to feelings of abhorrence the present admiration of the world.  But pardon the supposition of so impossible an event.  I believe that justice and mercy may be considered as the attributes of your character, and that you will not tarnish their lustre on this occasion.”