On Experimental Science
- An excerpt from Bacon's 1268 work, Opus Tertium. Provided by the Internet Medieval Sourcebook Project.
- http://www.fordham.edu/Halsall/source/bacon2.html

Despair over Thirteenth Century Learning
- An excerpt from Bacon's 1271 work, Compendium Studii Philosophiae. Modernized version of the Brewer translation, provided by the Internet Medieval Sourcebook Project.
- http://www.fordham.edu/Halsall/source/bacon1.html

The Mirror of Alchemy
- A brief tract attributed to Bacon, here in an English edition first published in 1597.
- http://www.levity.com/alchemy/mirror.html

Tract on the Tincture and Oil of Antimony
- A 1985 translation by Kjell Hellesoe of this alchemical treatise by Bacon.
- http://www.levity.com/alchemy/rbacon2.html