The scientific American reference book a compendium of useful information containing the complete census of the United States by counties map of the United States views of public buildings patent and copyright laws rules and directions for obtaining paten This book, "The scientific American reference book a compendium of useful information", by Albert A. Hopkins, is a replication of a book originally published before 1877. 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.