The Mirror of Alchemy
$7.49 - $32.95
Roger Bacon's Selected Occult Writings
$24.59 - $39.91
SELECTIONS FROM MEDIEVAL PHILOSOPHERS VOL. II: Roger Bacon to William of Ockham
$7.79 - $15.89
Root of the World and the Magical Letter
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The Opus Majus of Roger Bacon (Thoemmes Press - Medieval and Renaissance Philosophy)
$98.18
Roger Bacon's Letter
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Roger Bacon's Life and Work
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Philosophy
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The Causes of Error
$17.95 - $32.95
The Study Of Tongues
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Tract on the Tincture and Oil of Antimony
$8.58
The 'opus Majus' Of Roger Bacon, Ed, Volume 1...
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Roger Bacon: Sa Vie, Ses Ouvrages, Ses Doctrinces, d'Apr�s Des Textes In�dits
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The Chronicles and Memorials of Great Britain and Ireland During the Middle Ages
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Fr. Rogeri Bacon Opera Quaedam Hactenus Inedita: Vol. 1. Containing 1. Opus Tertium. 2. Opus Minus. 3. Compendium Philosophiae
$31.95 - $62.95
The Alchemy Method
$10.07
Roger Bacon & the Origins of Perspectiva in the Middle Ages: A Critical Edition & English Translation of Bacon's Perspectiva with Introduction and Notes
$250.00
Mathematics
$31.95
Experimental Science
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The Mirror of Alchimy
$17.70 - $30.95
Un Fragment In�dit de l'Opus Tertium de Roger Bacon: Pr'une Ude Sur Ce Fragment
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The 'opus Majus' Of Roger Bacon, Ed, Volume 2...
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Opus Majus of Roger Bacon, Part 1
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Opus Majus of Roger Bacon, Part 2
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Opera Hactenus Inedita Rogeri Baconi: Metaphysica Fratris Bogeri
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Moral Philosophy
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The Greek Grammar of Roger Bacon and a Fragment of His Hebrew Grammar;
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Fr. Rogeri Bacon Opera Qu�dam Hactenus Inedita
$32.95 - $89.84
Roger Bacon's Letter: Concerning The Marvelous Power Of Art And Nature And The Nullity Of Magic
$20.22
Optical Science
$20.34 - $39.95