| Under the Southern Cross
Elizabeth Robins | |
| Under the Southern Cross / Or Travels in Australia, Tasmania, New Zealand, Samoa, and Other Pacific Islands
Maturin M. Ballou | |
| Under the Stars and Bars / Or, Memories of Four Years Service with the Oglethorpes, of Augusta, Georgia
Walter A. Clark | |
| Under the Star-Spangled Banner: A Tale of the Spanish-American War
F. S. Brereton | |
| Under the Storm
Charlotte M. Yonge | |
| Under the Tiger's Claws; Or, A Struggle for the Right
Nicholas Carter | |
| Under the Tree
Elizabeth Madox Roberts | |
| Under the Trees and Elsewhere
Hamilton Wright Mabie | |
| Under the Turk in Constantinople: A record of Sir John Finch's Embassy, 1674-1681
G. F. Abbott | |
| Under the Waves: Diving in Deep Waters
R. M. Ballantyne |
