History of the inductive sciences, from the earliest to the present time

by William Whewell

Truncation (of crystals), b. [319].

Type (in Comparative Anatomy), b. [476].

Uniform force, a. [327].

Unity of Composition (in Comparative Anatomy), b. [483].

Unity of plan (in Comparative Anatomy), b. [483].

Variation of the moon, a. [179], [303]. [38]

Vegetable alkali, b. [264].

Vertebrata, b. [478].

Vibrations, b. [44].

Vicarious elements, b. [334].