Thể loại sách nói : Nature
The Natural History of Selborne
Gilbert White
The Outline of Science
J. Arthur Thomson
The Elements of Geology
William Harmon Norton
The Book of Household Management
Mrs. Isabella Beeton
The Biography of a Grizzly
Ernest Thompson Seton
Selected Poems by Currer, Ellis and Acton Bell
Brontë sisters
Far Away and Long Ago
William H. Hudson
The Arabian Art of Taming and Training Wild and Vicious Horses
P. R. Kincaid
Birds of the Air
Arabella B. Buckley
The Stories Mother Nature Told Her Children
Jane Andrews
Through the Brazilian Wilderness
Theodore Roosevelt
Squirrels and other Fur-Bearers
John Burroughs