A primer of logic,

Mode of access: Internet.

The principles of understanding; an introduction to logic from the standpoint of personal idealism,

Mode of access: Internet.

A treatise on logic, or, The laws of pure thought : comprising both the Aristotelic and Hamiltonian analyses of logical forms, and some chapters of applied logic /

Mode of access: Internet.

The science of logic; or, An analysis of the laws of thought.

Mode of access: Internet.

The logic of science,

Mode of access: Internet.

Elements of logic, together with an introductory view of philosophy in general, and a preliminary view of the reason. By Henry P. Tappan.

Mode of access: Internet.

Logic,

Mode of access: Internet.

The origin and growth of Plato's logic; with an account of Plato's style and of the chronology of his writings,

Mode of access: Internet.

The elements of inductive logic.

Mode of access: Internet.

A system of logic, ratiocinative and inductive, being a connected view of the principles of evidence and the methods of scientific investigation.

Mode of access: Internet.

Elementary lessons in logic; deductive and inductive. With copious questions and examples, and a vocabulary of logical terms.

Mode of access: Internet.

A system of formal logic ...

Mode of access: Internet.

Hegel's Logic a book on the genesis of the categories of the mind : a critical exposition /

Includes bibliographical references.

Coleridge on logic and learning,

Mode of access: Internet.

Essays in experimental logic.

Mode of access: Internet.