Science

The Chemistry, Properties and Tests of Precious Stones

Auroræ: Their Characters and Spectra

Radio-Activity

Australasian Fossils: A Students' Manual of Palaeontology

Discoveries and Inventions: A lecture by Abraham Lincoln delivered in 1860

Lasers

Worlds in the making: The evolution of the universe

Evolution

Essays on Darwinism

The Rare Earths: Their Occurrence, Chemistry, and Technology

The Study of Elementary Electricity and Magnetism by Experiment

Synthesis of 2-methyl-4-selenoquinazolone, 2-phenylbenzoselenazole, and its derivatives

Natural History of the Salamander, Aneides hardii

The modes of origin of lowest organisms including a discussion of the experiments of M. Pasteur

Comet Lore

The Ways of the Planets

Human Brain Secrets

Buried Stone Secrets

Sunken Cave Secrets

Hidden Insect World