Astrophysics

Astrophysics for People In a Hurry – Summarized for Busy People: Based On the Book By Neil De Grasse Tyson

13 Journeys Through Space and Time

Cosmic Impact

The Key of Solomon the king (Clavicula Salomonis)

Light and Colour Theories, and their relation to light and colour standardization

Knowledge in a Nutshell: Astrophysics

Keely and His Discoveries: Aerial Navigation

Neptune

Absolute Key To Occult Science, The Tarot Of The Bohemians

On an Inversion of Ideas as to the Structure of the Universe

The theory of relativity and its influence on scientific thought

Photographing the Deep Sky

Pulse Detonation Engine

Six Lectures on Light

The Relations of Physics of Electrons to Other Branches of Science

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

On an Inversion of Ideas as to the Structure of the Universe

Comets and Meteors

Kinetic Theories of Gravitation

The Mystery of the Starbook