This book, "A century of the United States pharmacopoeia, 1820-1920. I.The galenical oleoresins. 1", by Andrew Grover Du Mez, is a replication of a book originally published before 1919. It has been restored by human beings, page by page, so that you may enjoy it in a form as close to the original as possible. This book was created using print-on-demand technology. Thank you for supporting classic literature.