Books about Natural history -- Juvenile fiction (sorted alphabetically)
- Red Rooney: The Last of the Crew R. M. Ballantyne
- Rover of the Andes: A Tale of Adventure on South America R. M. Ballantyne
- Settler and the Savage R. M. Ballantyne
- Shaggycoat: The Biography of a Beaver Clarence Hawkes
- Silver Rags Willis Boyd Allen
- Southern Cross fairy tale Kate McCosh Clark
- South Sea Whaler William Henry Giles Kingston
- Stories of Animal Sagacity William Henry Giles Kingston
- Story of a Red Deer Sir J. W. Fortescue
- Story of the Golden Age James Baldwin
- Story Without an End Friedrich Wilhelm Carové
- Sun's Babies Edith Howes
- Swan and Her Crew G. Christopher Davies
- Tales out of school Frank R. Stockton
- Twinkle and Chubbins: Their Astonishing Adventures in Nature-Fairyland L. Frank Baum
- Two Ways of Becoming a Hunter Harry Castlemon
- Under the Great Bear Kirk Munroe
- Ungava R. M. Ballantyne
- Vee-Boers: A Tale of Adventure in Southern Africa Mayne Reid
- Wanderers; Or, Adventures in the Wilds of Trinidad and Orinoco William Henry Giles Kingston
- What the Animals Do and Say Eliza Lee Cabot Follen
- White Czar: A Story of a Polar Bear Clarence Hawkes
- Wild Adventures in Wild Places Gordon Stables
- Wild Adventures round the Pole Gordon Stables
- Wild Man of the West: A Tale of the Rocky Mountains R. M. Ballantyne