Subjects: the river and i (sorted by popularity)
- Fishes -- Kansas -- Wakarusa River 97 downloads
- Arkansas River -- Description and travel 96 downloads
- Shenandoah River Valley (Va. and W. Va.) -- Description and travel -- Early works to 1800 96 downloads
- Freeman, Lewis R. (Lewis Ransome), 1878-1960 -- Travel -- Columbia River 96 downloads
- French -- Mississippi River Valley 96 downloads
- Washington, George, 1732-1799 -- Travel -- Shenandoah River Valley (Va. and W. Va.) 96 downloads
- Mississippi River Valley 92 downloads
- Yellowstone River 92 downloads
- Tennessee River Valley 92 downloads
- Ohio River Valley 92 downloads
- South Platte River Valley (Colo. and Neb.) -- Fiction 90 downloads
- Danube River -- Navigation -- Fiction 90 downloads
- Saint Croix River (Wis. and Minn.) 88 downloads
- Mississippi River Valley -- History -- 1803-1865 88 downloads
- River life -- Juvenile fiction 87 downloads
- Mississippi River Valley -- History -- Civil War, 1861-1865 87 downloads
- Saint Lawrence River Valley -- Fiction 87 downloads
- Hudson River (N.Y. and N.J.) -- Pictorial works 87 downloads
- Hudson River Region (N.Y. and N.J.) -- History 86 downloads
- Aroostook River (Me. and N.B.) 86 downloads
- Niagara River (N.Y. and Ont.) -- History 86 downloads
- Penobscot River (Me.) 86 downloads
- Saint Lawrence River -- Description and travel 85 downloads
- Ohio River -- Description and travel -- Juvenile literature 83 downloads
- Mimbres River Valley (N.M.) -- Antiquities 83 downloads