Cephalopoda of the Beekmantown and Chazy formations of the Champlain basin This book, "Cephalopoda of the Beekmantown and Chazy formations of the Champlain basin", by Rudolf Ruedemann, is a replication of a book originally published before 1906. 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.