Here is a link to de Tocqueville's Democracy in America . The chapter on race relations is actually Volume I, Chapter 18 and that quote is nowhere to be seen, but on the off-chance I missed it elsewhere in the book perhaps you would be so kind to tell us where to locate the 'stink of the black man' quote? I suspect that de Tocqueville said nothing of the sort, and you're just regaling us with your creative imagination again but feel free to show me wrong.