Books about Natural history -- Juvenile fiction (sorted by popularity)
- Under the Great Bear Kirk Munroe 76 downloads
- The Story of a Red Deer Sir J. W. Fortescue 75 downloads
- The Story Without an End Friedrich Wilhelm Carové 74 downloads
- The Boy Travellers in The Russian Empire Thomas Wallace Knox 74 downloads
- The South Sea Whaler William Henry Giles Kingston 73 downloads
- The Rover of the Andes: A Tale of Adventure on South America R. M. Ballantyne 72 downloads
- Minnie's Pet Monkey Madeline Leslie 72 downloads
- The Young Voyageurs: Boy Hunters in the North Mayne Reid 71 downloads
- Silver Rags Willis Boyd Allen 71 downloads
- The Young Yagers: A Narrative of Hunting Adventures in Southern Africa Mayne Reid 70 downloads
- The Settler and the Savage R. M. Ballantyne 70 downloads
- Kullankaivajat ja indiaanit: Kertomus Pohjois-Meksikosta (Finnish) Mayne Reid 68 downloads
- Piccolissima Adélaïde de Montgolfier 67 downloads
- Afar in the Forest William Henry Giles Kingston 67 downloads
- The Wanderers; Or, Adventures in the Wilds of Trinidad and Orinoco William Henry Giles Kingston 67 downloads
- The Crystal Hunters: A Boy's Adventures in the Higher Alps George Manville Fenn 66 downloads
- Arthur Brown, The Young Captain Elijah Kellogg 65 downloads
- Gascoyne, the Sandal-Wood Trader R. M. Ballantyne 64 downloads
- The Prairie Chief R. M. Ballantyne 63 downloads
- Down South; or, Yacht Adventure in Florida Oliver Optic 63 downloads
- Among the Red-skins; Or, Over the Rocky Mountains William Henry Giles Kingston 63 downloads
- The Fur-Seal's Tooth: A Story of Alaskan Adventure Kirk Munroe 62 downloads
- Wild Adventures in Wild Places Gordon Stables 62 downloads
- Blown to Bits: The Lonely Man of Rakata, the Malay Archipelago R. M. Ballantyne 62 downloads
- Cast Away in the Cold I. I. Hayes 62 downloads