Percy A. Morris
1899
A field guide to shells of the Atlantic and gulf coasts and the West Indies
A field guide to the shells of our Atlantic coast
A field guide to shells of the Pacific Coast and Hawaii, including shells of the Gulf of California
A field guide to the shells of our Atlantic and Gulf coasts
An introduction to the reptiles and amphibians of the United States
Field Guide to Shells of the Atlantic
Field guide to shells of the Pacific coast and Hawaii
Nature study at the seashore
Boy's book of frogs, toads and salamanders
Boy's book of snakes
Boy's book of turtles and lizards
Nature photography around the year