Essentials of Homœopathic Materia and Homœopathic Pharmacy This book, "Essentials of Homœopathic Materia and Homœopathic Pharmacy", by Willis Alonzo Dewey, is a replication of a book originally published before 1908. 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.