COSMOS: A Sketch of the Physical Description of the Universe, Vol. 1

The Biology, Physiology and Sociology of Reproduction / Also Sexual Hygiene with Special Reference to the Male

Astronomy for Amateurs

Text Book of Biology, Part 1: Vertebrata

Logic / Deductive and Inductive

The Principles of Masonic Law / A Treatise on the Constitutional Laws, Usages and Landmarks of / Freemasonry

Five Stages of Greek Religion

Christianity and Greek Philosophy / or, the relation between spontaneous and reflective thought / in Greece and the positive teaching of Christ and His / Apostles

Dialogues Concerning Natural Religion

The Story of Alchemy and the Beginnings of Chemistry

A History of Indian Philosophy, Volume 1