Rontgen rays and electro-therapeutics with chapters on radium and phototherapy. This book, "Röntgen rays and electro-therapeutics with chapters on radium and phototherapy. Volume 15", by Mihran Krikor Kassabian, is a replication of a book originally published before 1907. 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.