Half-Hours with the Stars / A Plain and Easy Guide to the Knowledge of the Constellations

Myths and Marvels of Astronomy

Half-hours with the Telescope / Being a Popular Guide to the Use of the Telescope as a / Means of Amusement and Instruction

Myths and Marvels of Astronomy

Light Science for Leisure Hours

Pleasant Ways in Science

Flowers of the Sky

Rough Ways Made Smooth

Half-hours with the Telescope

The Pyramid of Cheops