Books about Natural history -- Juvenile fiction (sorted by popularity)
- Born to Wander: A Boy's Book of Nomadic Adventures Gordon Stables 60 downloads
- The Coral Island: A Tale of the Pacific Ocean R. M. Ballantyne 60 downloads
- Silver Rags Willis Boyd Allen 60 downloads
- Dick Rodney; or, The Adventures of an Eton Boy James Grant 60 downloads
- The American family Robinson : or, The adventures of a family lost in the great desert of the West. D. W. Belisle 59 downloads
- Stories of Animal Sagacity William Henry Giles Kingston 59 downloads
- The Young Wild-Fowlers Harry Castlemon 59 downloads
- Minnie's Pet Horse Madeline Leslie 58 downloads
- Joe Wayring at Home; or, The Adventures of a Fly-Rod Harry Castlemon 57 downloads
- Minnie's Pet Lamb Madeline Leslie 57 downloads
- Bertha's Visit to Her Uncle in England; vol. 2 [of 3] Mrs. Marcet 56 downloads
- Little Robins' Love One to Another Madeline Leslie 55 downloads
- Afloat in the Forest; Or, A Voyage among the Tree-Tops Mayne Reid 55 downloads
- Wild Adventures in Wild Places Gordon Stables 54 downloads
- Among the Esquimaux; or, Adventures under the Arctic Circle Edward Sylvester Ellis 53 downloads
- Harry Milvaine; Or, The Wanderings of a Wayward Boy Gordon Stables 52 downloads
- Ihmissyöjäin vankina: Seikkailuja Afrikan aarniometsissä (Finnish) Verney Lovett Cameron 51 downloads
- The Sun's Babies Edith Howes 51 downloads
- The Cruise of the Frolic William Henry Giles Kingston 51 downloads
- The Story Without an End Friedrich Wilhelm Carové 50 downloads
- Oscar in Africa Harry Castlemon 50 downloads
- Professor Johnny J. Ā. K. 48 downloads
- Arthur Brown, The Young Captain Elijah Kellogg 47 downloads
- Bertha's Visit to Her Uncle in England; vol. 3 [of 3] Mrs. Marcet 44 downloads
- Lion Ben of Elm Island Elijah Kellogg 44 downloads