Bookseller's Catalogues nos. 231, 234 N.D., ca. 2005. 231: lists 221 items 'relating to issues of slavery and abolition in the Atlantic world in the 17th to 19th centuries. While a number of items have to do with slavery in the United States, the greater part is devoted to larger field, particularly Caribbean slavery, the slave trade, and the like.' 234: 'is devoted to maps of the Western Hemisphere, primarily of the United States in the 18th and 19th centuries. In most cases they are maps in books (such as Lewis and Clark or Pike), pocket maps, wall maps, or atlases,but in some cases manuscript. There are also a number of earlier pieces, from 1541 onward.