An investigation of some derivatives of orthosulphobenzoic acid This book, "An investigation of some derivatives of orthosulphobenzoic acid", by Michael Druck Sohon, is a replication of a book originally published before 1896. 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.