Johnson's Natural Philosophy, and Key to Philosophical Charts. Illustrated with 500 Cuts; Being Reduced Photographic Copies of All the Diagrams Contai (Hardcover)
Aid to Teachers and Students in Natural Philosophy: Being the "Key" to Dr. Johnson's Philosophical Charts: Accompanied With Facsimiles of the Charts O (Hardcover)
Johnson's Natural Philosophy, and Key to Philosophical Charts: Illustrated with 500 cuts; being reduced photographic copies of all the diagrams contai (Paperback)