| Title / Condition | Highlights | Price |
|---|---|---|
| Principia Mathematica. Whitehead, Alfred North; and Bertrand Russell. / Used - Hardcover | 1st Edition | $4,000.00 |
| The general theory of employment, interest, and money. Keynes, John Maynard. / Used - Hardcover | Dust Jacket | $1,200.00 |
| A system of logic, ratiocinative and inductive, being a connected view of the principles of evidence, and the methods of scientific investigation. Mill, John Stuart. / Used - Hardcover | $350.00 |