Trees, Shown to the Children By: C. E. Smith

Trinity site By: National Atomic Museum (U.S.)

Triplanetary, First in the Lensman Series By: E. E. “Doc” Smith

Tulan By: C. C. MacApp

Turnover Point By: Alfred Coppel

Twelve Causes of Dishonesty By: Henry Ward Beecher

Two American Slavery Documents By: American and Foreign Anti-Slavery Society

Two Decades A History of the First Twenty Years' Work of the Woman's Christian Temperance Union of the State of New York By: Georgeanna M. Gardenier

Two New Pelycosaurs from the Lower Permian of Oklahoma By: Richard C. Fox

Two New Pocket Gophers from Wyoming and Colorado By: H. Gordon Montague

Two Plus Two Makes Crazy By: Walter J. Sheldon

Two Timer By: Fredric Brown

U. S. Energy Sector Vulnerabilities to Climate Change and Extreme Weather By: United States Department of Energy

Ullr Uprising By: H. Beam Piper

Unborn Tomorrow By: Mack Reynolds

Uncle Robert's Geography (Uncle Robert's Visit, V.3) By: Nellie Lathrop Helm

Unconscious Memory By: Samuel Butler

Under Arctic Ice By: Harry Bates

Under the Maples By: John Burroughs

Underground Man By: Gabriel Tarde

Understanding Climatic Change By: US Comm. for the Global Atmospheric Research Program

United States Census Figures Back to 1630 By: United States. Bureau of the Census

Unspecialist By: Murray F. Yaco

Untechnological Employment By: Ed M. Clinton

Unthinkable By: Roger Phillips Graham

Unwise Child By: Randall Garrett

Upstarts By: Joseph Wesley

Use Of The Dead To The Living By: Thomas Southwood Smith

Valere Aude Dare to Be Healthy, Or, The Light of Physical Regeneration By: Louis Dechmann

Valerius Terminus; of the interpretation of nature By: Francis Bacon

Valley of Dreams By: Stanley Grauman Weinbaum

Valley of the Croen By: Lee Tarbell