The pamphlets in the collection have intrinsically more value than the larger works. They were nearly all contemporaneous, and were sent to Washington by their authors, with inscriptions upon the title pages in their authors' handwriting, of the most profound respect and esteem. Some of these pamphlets are now exceedingly rare. In a bound volume lettered "Tracts on Slavery," and containing several papers, all of radical anti-slavery tendencies,[3] is the one to which I wish especially to call your attention. It is so rare that, having shown this copy for fifteen years to persons especially interested in this subject, and having made the most diligent inquiry, I have never heard of another, till within a few days since, when I learn from my friend, Mr. George H. Moore, the librarian of the New York Historical Society, that there is a copy in that society's library. Its title is: "An Oration upon the Moral and Political Evil of Slavery. Delivered at a Public Meeting of the Maryland Society for Promoting the Abolition of Slavery and the Relief of Free Negroes and others unlawfully held in Bondage, Baltimore, July 4, 1791. By George Buchanan, M. D., Member of the American Philosophical Society. Baltimore: Printed by Philip Edwards, M,DCC,XCIII." Twenty pages, octavo. A Fourth-of-July oration in Baltimore, on the moral and political evils of slavery, only four years after the adoption of the Constitution, is an incident worthy of historical recognition, and a place in anti-slavery literature. The following extracts will give an idea of its style and range of thought: "God hath created mankind after His own image, and granted them liberty and independence; and if varieties may be found in their structure and color, these are only to be attributed to the nature of their diet and habits, as also to the soil and the climate they may inhabit, and serve as flimsy pretexts for enslaving them. "What, will you not consider that the Africans are men? That they have human souls to be saved? That they are born free and independent? A violation of these prerogatives is an infringement upon the laws of God. "Possessed of Christian sentiments, they fail not to exercise them when opportunity offers. Things pleasing rejoice them, and melancholy circumstances pall their appetites for amusements. They brook no insults, and are equally prone to forgiveness, as to resentments. They have gratitude also, and will even expose their lives to wipe off the obligation of past favors; nor do they want any of the refinements of taste, so much the boast of those who call themselves Christians.