Science

Science and the modern world

The Earth's Beginning

Astronomy and General Physics Considered with Reference to Natural Theology

Conversations on the Plurality of Worlds

Dragons of the Air: An Account of Extinct Flying Reptiles

Aether and Gravitation

Electricity and Magnetism

The Flying Saucers are Real

The Preparation & Mounting of Microscopic Objects

On the Parts of Animals

Natural Philosophy

Round the year with the stars

Pleasures of the telescope

Crania Ægyptiaca

Marine Protozoa from Woods Hole

Colour Measurement and Mixture

A Monograph of the Trilobites of North America: with Coloured Models of the Species

The Genetic Effects of Radiation

Essays of a Biologist

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