A System of Logic, Ratiocinative and Inductive

The Analysis of Mind

A Treatise of Human Nature

Young's Demonstrative Translation of Scientific Secrets Or, A Collection of Above 500 Useful Receipts on a Variety of Subjects

The Misuse of Mind

The Essays of Arthur Schopenhauer; the Art of Controversy

A System of Logic, Ratiocinative and Inductive (Vol. 1 of 2)

Θεαίτητος

Our Knowledge of the External World as a Field for Scientific Method in Philosophy

The Problem of Truth

First notions of logic (preparatory to the study of geometry)

Grundriß der Logik