Books about Natural history -- Juvenile fiction (sorted by popularity)
- The Perambulations of a Bee and a Butterfly, Elizabeth Sandham 57 downloads
- Canoemates: A Story of the Florida Reef and Everglades Kirk Munroe 57 downloads
- Two Ways of Becoming a Hunter Harry Castlemon 57 downloads
- The Fur-Seal's Tooth: A Story of Alaskan Adventure Kirk Munroe 56 downloads
- Harry Milvaine; Or, The Wanderings of a Wayward Boy Gordon Stables 56 downloads
- Silver Rags Willis Boyd Allen 56 downloads
- Captain Mugford: Our Salt and Fresh Water Tutors William Henry Giles Kingston 55 downloads
- Bessie among the Mountains Joanna H. Mathews 55 downloads
- Nat the Naturalist: A Boy's Adventures in the Eastern Seas George Manville Fenn 55 downloads
- The Rajah of Dah George Manville Fenn 54 downloads
- Minnie's Pet Parrot Madeline Leslie 54 downloads
- The Cruise of the Frolic William Henry Giles Kingston 53 downloads
- Piccolissima Adélaïde de Montgolfier 53 downloads
- The Lost Mountain: A Tale of Sonora Mayne Reid 52 downloads
- In Savage Africa Verney Lovett Cameron 49 downloads
- Minnie's Pet Lamb Madeline Leslie 49 downloads
- The White Czar: A Story of a Polar Bear Clarence Hawkes 49 downloads
- Bertha's Visit to Her Uncle in England; vol. 2 [of 3] Mrs. Marcet 48 downloads
- The Young Wild-Fowlers Harry Castlemon 48 downloads
- Bertha's Visit to Her Uncle in England; vol. 3 [of 3] Mrs. Marcet 47 downloads
- Dick in the Desert James Otis 47 downloads
- Little Robins Learning to Fly Madeline Leslie 46 downloads
- The Jungle Fugitives: A Tale of Life and Adventure in India Edward Sylvester Ellis 46 downloads
- What the Animals Do and Say Eliza Lee Cabot Follen 44 downloads
- Martin Rattler R. M. Ballantyne 43 downloads