Booksellers and bookselling -- Pennsylvania -- Philadelphia Books and Bookselling--19th Century 2 Economics--19th century 2 Publishers and publishing 2 Publishing 2 Publishing--19th century 2 Selling--Books 2 more ... Bibliomania 1 Bibliophily 1 Bradford, James Sydney 1 Caldwell family 1 Hewson family 1 Medical Journals--19th century 1 Pennsylvania. National Guard. Regiment, 20th 1 Publishers and Publishing--Pennsylvania--Philadelphia--19th century 1 Publishers and Publishing--Philadelphia--19th century 1 Rare book dealers--20th century 1 less ...