Trees of North America
C. Frank Brockman
Birds of North America
Chandler S. Robbins, Bertel Bruun & Herbert S. Zim
Rocks and Minerals
Charles A. Sorrell
Reptiles of North America
Hobart M. Smith & Edmund D. Brodie, Jr.
Seashells of North America
R. Tucker Abbott & Herbert S. Zim
Night Sky
Mark R. Chartrand