Sky Observation

History of Astronomy

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

A Cloud a Day

See It with a Small Telescope

Mars. III. Canals

The Hurricane Guide

The Destinies of the Stars

Comets and Meteors

Harmonies of the World

The man among the monkeys; or, Ninety days in apeland

Round the year with the stars

Voyager 1 Encounters Saturn

A++ and the Lambda Calculus

In the Shadow of the Moon

The music of the spheres : A nature lover's astronomy

Camping

Flowers of the Sky

A Field Book of the Stars

Astronomy with an Opera-glass

Modern Alchemy and the Philosopher's Stone