1864 "Freedom Primer" for slaves scanned and posted

Here's a Flickr set of "The gospel of slavery: a primer of freedom," a book with engravings published in 1864. It takes the form of a series of poems about freedom and slavery, and is purely marvellous. When I see stuff like this, I sometimes get a thrill to my toes as I realize that practically every document of this vintage will soon be on the web and only a quick search away.

Link

(Thanks, Andi!)