1
by Bacon, Francis
Oregon Renascence Editions

2
by Bacon, Francis
Oregon Renascence Editions

3
by Aristotle
Alex Catalogue

4
by Aristotle
Alex Catalogue

5
by Toulmin, Stephen Edelston
Cambridge University Press

6
by Bacon, Francis
Bibliobytes

7
by Plato
Alex Catalogue

8
by Plato
Project Gutenberg