Books about Natural history -- Juvenile fiction (sorted by popularity)
- Lion Ben of Elm Island Elijah Kellogg 61 downloads
- Down South; or, Yacht Adventure in Florida Oliver Optic 61 downloads
- Fighting the Whales R. M. Ballantyne 60 downloads
- Joe Wayring at Home; or, The Adventures of a Fly-Rod Harry Castlemon 60 downloads
- The Kangaroo Hunters; Or, Adventures in the Bush active 19th century Anne Bowman 60 downloads
- Piccolissima Adélaïde de Montgolfier 60 downloads
- Adventures in the Far West William Henry Giles Kingston 60 downloads
- Bertha's Visit to Her Uncle in England; vol. 3 [of 3] Mrs. Marcet 60 downloads
- The Perambulations of a Bee and a Butterfly, Elizabeth Sandham 59 downloads
- The Big Otter R. M. Ballantyne 59 downloads
- Captured by Apes; or, How Philip Garland Became King of Apeland Harry Prentice 59 downloads
- Ihmissyöjäin vankina: Seikkailuja Afrikan aarniometsissä (Finnish) Verney Lovett Cameron 59 downloads
- The Log House by the Lake: A Tale of Canada William Henry Giles Kingston 58 downloads
- Among the Red-skins; Or, Over the Rocky Mountains William Henry Giles Kingston 58 downloads
- Jungle and Stream; Or, The Adventures of Two Boys in Siam George Manville Fenn 58 downloads
- Jack at Sea: All Work and No Play Made Him a Dull Boy George Manville Fenn 58 downloads
- Bertha's Visit to Her Uncle in England; vol. 2 [of 3] Mrs. Marcet 58 downloads
- The Eagle Cliff R. M. Ballantyne 58 downloads
- Red Rooney: The Last of the Crew R. M. Ballantyne 58 downloads
- Shaggycoat: The Biography of a Beaver Clarence Hawkes 57 downloads
- The World of Ice R. M. Ballantyne 57 downloads
- The White Czar: A Story of a Polar Bear Clarence Hawkes 56 downloads
- In the Eastern Seas William Henry Giles Kingston 56 downloads
- Professor Johnny J. Ā. K. 56 downloads
- Little Robins' Love One to Another Madeline Leslie 56 downloads