Science
ABC of Relativity
Advance of Science in the Last Half-Century
Adventures of a Grain of Dust
Aids to Forensic Medicine and Toxicology
American Egypt
Andes and The Amazon
Apis Mellifica
Astronomy: The Science of the Heavenly Bodies
Autobiography of an Electron
Bee People
Behavior of the Honey Bee in Pollen Collecting
Bird Study Book
Birds and Bees, Sharp Eyes, and Other Papers
Birds of the Air
Birds of the Air
Book of the Damned
Book of the National Parks
Boys' and Girls' Pliny Vol. 2
Boys' and Girls' Pliny Vol. 3
Boys' and Girls' Pliny Vol. 4
Brief History of Forestry
Burgess Animal Book for Children
Burgess Bird Book for Children
By Pond and River
Canyons of the Colorado