Gnosis: The Nature and History of Gnosticism
Kurt Rudolph
The Karma of Untruthfulness: V. 1
Rudolf Steiner
The Boscombe Valley Mystery
Arthur Conan Doyle
Preliminary Discourse on Philosophy in General
Christian Freiherr von Wolff
Applied Ontology: An Introduction
Barry Smith & Katherine Munn
A Concise Etymological Dictionary of the English Language
Walter W. Skeat