Books about Natural history -- Juvenile fiction (sorted by popularity)
- The Coral Island: A Tale of the Pacific Ocean R. M. Ballantyne 58 downloads
- Silver Rags Willis Boyd Allen 58 downloads
- Gascoyne, the Sandal-Wood Trader R. M. Ballantyne 58 downloads
- Bessie among the Mountains Joanna H. Mathews 58 downloads
- The Fur-Seal's Tooth: A Story of Alaskan Adventure Kirk Munroe 57 downloads
- Minnie's Pet Parrot Madeline Leslie 56 downloads
- Captain Mugford: Our Salt and Fresh Water Tutors William Henry Giles Kingston 56 downloads
- The Cruise of the Frolic William Henry Giles Kingston 55 downloads
- Nat the Naturalist: A Boy's Adventures in the Eastern Seas George Manville Fenn 54 downloads
- Piccolissima Adélaïde de Montgolfier 54 downloads
- What the Animals Do and Say Eliza Lee Cabot Follen 53 downloads
- Born to Wander: A Boy's Book of Nomadic Adventures Gordon Stables 53 downloads
- Canoemates: A Story of the Florida Reef and Everglades Kirk Munroe 52 downloads
- Bertha's Visit to Her Uncle in England; vol. 2 [of 3] Mrs. Marcet 52 downloads
- The White Czar: A Story of a Polar Bear Clarence Hawkes 52 downloads
- Minnie's Pet Lamb Madeline Leslie 50 downloads
- The Rajah of Dah George Manville Fenn 50 downloads
- The Young Wild-Fowlers Harry Castlemon 48 downloads
- Bertha's Visit to Her Uncle in England; vol. 3 [of 3] Mrs. Marcet 48 downloads
- The Lost Mountain: A Tale of Sonora Mayne Reid 48 downloads
- Dick in the Desert James Otis 48 downloads
- In Savage Africa Verney Lovett Cameron 47 downloads
- Little Robins Learning to Fly Madeline Leslie 45 downloads
- Martin Rattler R. M. Ballantyne 43 downloads
- The Jungle Fugitives: A Tale of Life and Adventure in India Edward Sylvester Ellis 41 downloads