Astronomy

The Illustrated Guide to Understanding Astrophysics and the Universe

The Destinies of the Stars

The Destinies of the Stars

Auroræ: Their Characters and Spectra

Stargazing: Past and Present

Meteoric astronomy: A treatise on shooting-stars, fire-balls, and aerolites

The Copernicus of Antiquity (Aristarchus of Samos)

The Copernicus of Antiquity (Aristarchus of Samos)

First Manned Rocket Launch

Who Banged the Big Bang

The Illustrated Guide to the Universe

Life Among the Stars

Star Born

The YOU in ME, Forever

The World of Flying Saucers: A Scientific Examination of a Major Myth of the Space Age

The Evolution of Worlds

Celestial Beings

Moon Cycles

Comets and Meteors

A Short History of Astronomy