Works by Roger Bacon

Commentaries on Aristotle

Questiones supra libros prime philosophie Aristotelis
Ed. Robert Steele and Ferdinand M. Delorme. Opera hactenus inedita Rogeri Baconi (OHI) 10. Oxford: Clarendon, 1930  download

Questiones supra libros octo physicorum Aristotelis
Ed. Ferdinand M. Delorme and Robert Steele. Opera hactenus inedita Rogeri Baconi (OHI) 13. Oxford: Clarendon, 1935  download

Questiones supra librum de causis
Ed. Robert Steele and Ferdinand M. Delorme. Opera hactenus inedita Rogeri Baconi (OHI) 12. Oxford: Clarendon, 1935 download

Questiones supra de plantis
Ed. Robert Steele and Ferdinand M. Delorme. Opera hactenus inedita Rogeri Baconi (OHI) 11. Oxford: Clarendon, 1932  download

QUESTIONES SUPRA De sensu et sensato
Ed. Robert Steele. Opera hactenus inedita Rogeri Baconi (OHI) 14. Oxford: Clarendon, 1937  download 

Quaestiones supra librum De generatione et corruptione
Unedited. Rome, Collegio di S. Isidoro, ms I/10. This work is possibly authentic, as signalled by Donati (2013), and suggested by Delorme (1935). See also Lohr (2010) – read

*In Meteora
Unedited. Rome, Collegio di S. Isidoro, ms I/10. The authenticity of this work has been suggested by Delorme (1935), although the hypothesis needs to be thoroughly assessed. See also Lohr (2010) and Donati (2013).

*Questiones supra libros quatuor physicorum Aristotelis
Ed. Ferdinand M. Delorme and Robert Steele. Opera hactenus inedita Rogeri Baconi (OHI) 8. Oxford: Clarendon, 1928. This work is probably spurious, as signalled by Silvia Donati (2013)  download

*Questiones supra undecimum prime philosophie Aristotelis
Ed. Robert Steele. Opera hactenus inedita Rogeri Baconi (OHI) 7. Oxford: Clarendon, 1926. This work is probably spurious, as signalled by Silvia Donati (2013)  download

*Questiones altere supra libros prime philosophie Aristotelis
Ed. Robert Steele and Ferdinand M. Delorme. Opera hactenus inedita Rogeri Baconi (OHI) 11. Oxford: Clarendon, 1932. This work is probably spurious, as signalled by Silvia Donati (2013)  download

The Three Opera to Clement IV

Opus maius
Edited by John Henry Bridges. 3 volls. Oxford and Edinburgh: Clarendon, 1897-1900 vol. 1vol. 2vol. 3

English translation by Robert Belle Burke. Philadelphia: University of Pennsylvania Press, 1928. Vol. 1 (unavailable online). Vol. 2 download

German translation (sections) by Nikolaus Egel. Roger Bacon, Die Neubegründung der Wissenschaft: Brief an Papst Clemens IV.; Opus maius, Teil I, II und VI; Brief über die geheimen Werke der Kunst und der Natur und über die Nichtigkeit der Magie. Hamburg: Meiner Verlag, 2017 see

Italian translation (sections) by Valeria Sorge and Fabio Seller. Filosofia, scienza, teologia dall’Opus Maius. Roma: Armando Editore, 2010.

Italian translation (section on experimental science) by Francesco Bottin. La scienza sperimentale (Milano: Rusconi, 1990).

Japanese translation (parts 4-6) by Ken’ichi Takahashi: Roger Bacon: Biachosaku. Foreward by Ito Shuntaro (Tokyo: Asahi Shuppansha, 1980).

Letter to Pope Clement IV
Edited by F. Gasquet. “An Unpublished Fragment of Roger Bacon.” The English Historical Review (1894): 495–517 download

Edited and translated (Italian) by E. Bettoni. Milan: Biblioteca francescana provinciale, 1964.

English translation by Nikolaus Egel. “Letter to Pope Clement IV.” Revista Española de Filosofía Medieval 27/2 (2020): 143-174 download

German translation by Nikolaus Egel. Roger Bacon, Die Neubegründung der Wissenschaft: Brief an Papst Clemens IV.; Opus maius, Teil I, II und VI; Brief über die geheimen Werke der Kunst und der Natur und über die Nichtigkeit der Magie. Hamburg: Meiner Verlag, 2017 link

Italian translation by Francesco Bottin. La scienza sperimentale (Milano: Rusconi, 1990).

French translation by J.-M. Meillaud. Lettre à Clément IV. In “Philosophes médiévaux des XIIIe et XIVe.” Anthologie de textes philosophiques 10/18 (1986): 131-148.

De signis
Edited by K.M. Fredborg, L. Nielsen, and J. Pinborg. “An Unedited Part of Roger Bacon’s ‘Opus maius’: ‘De signis’.” Traditio 34 (1978): 75-136.

English translation by Thomas S. Maloney. Toronto: PIMS, 2013. 

French translation by I. Rosier-Catach, J. Biard, and L. Cesalli. Roger Bacon et le De signis. Paris: Vrin, forthcoming.

Moralis Philosophia
Edited by E. Massa. Zurich: Thesaurus Mundi, 1953.

German translation (sections) by Pia Antolic. Roger Bacon: ‘Opus maius.’ Eine moralphilosophische Auswahl. Freiburg: Herder, 2008 – link

Opus minus
Edited by J. S. Brewer. Opera quaedam hactenus inedita. London: Longman, Green, Longman and Roberts, 1859 download

Opus tertium
Edited and translated (German) by Nikolaus Egel. Hamburg: Felix Meiner Verlag, 2019 see

Previous edition: Opus tertium. Edited by J. S. Brewer. Opera quaedam hactenus inedita. London: Longman, Green, Longman and Roberts, 1859 download

Partial edition by A.G. Little. Part of the Opus tertium of Roger Bacon, including a Fragment Now Printed for the First Time. Aberdeen: Aberdeen University Press, 1912  download

Fragment edited by P. Duhem. Un fragment inédit de l’Opus tertium de Roger Bacon. Quarrachi, 1909  download

Works on Logic and Grammar

Summulae dialectices
Edited by A. De Libera. “Les Summulae dialectices de Roger Bacon.” Archives d’Histoire Doctrinale et Littéraire du Moyen Âge 53 (1986): 139–289 and Archives d’Histoire Doctrinale et Littéraire du Moyen Âge 54 (1987): 171–278 download

Previous edition: Sumule dialectices. Ed. Robert Steele. Opera hactenus inedita Rogeri Baconi (OHI) 15. Oxford: Clarendon, 1940  download

English translation by Thomas S. Maloney. The Art and Science of Logic. Toronto: PIMS, 2009.

Summa de sophismatibus et distinctionibus
Ed. Robert Steele. Opera hactenus inedita Rogeri Baconi (OHI) 14. Oxford: Clarendon, 1937  download

Summa gramatica
Ed. Robert Steele. Opera hactenus inedita Rogeri Baconi (OHI) 15. Oxford: Clarendon, 1940  download

Greek Grammar
Edited by E. Nolan and S.A. Hirsch. The Greek Grammar of Roger Bacon and a Fragment of His Hebrew Grammar. Cambridge: Cambridge University Press, 1902  download

Works on Natural Philosophy

Communia naturalium
Edited by Robert Steele. Opera hactenus inedita Rogeri Baconi (OHI) 2-4. Oxford: Clarendon, 1910-1913  book 1.1-2book 1.3-4 – book 2

De multiplicatione specierum
Edited and translated (English) by D.C. Lindberg. Roger Bacon’s Philosophy of Nature. Oxford: Clarendon Press, 1983.

De speculis comburentibus
Edited and translated (English) by D.C. Lindberg. Roger Bacon’s Philosophy of Nature. Oxford: Clarendon Press, 1983.

*SI TERMINUS AD QUEM GENERANDUS
Edited by S. Harrison Thomson, “An Unnoticed Treatise of Roger Bacon on Time and Motion.” Isis 27/2 (1937): 219-224. Bacon’s authorship has been suggested by Thomson, but has not been ascertained yet. text

Works on Mathematics

Communia mathematica
Edited by Robert Steele. Opera hactenus inedita Rogeri Baconi (OHI) 16. Oxford: Clarendon, 1940  download

Perspectiva
Edited and translated (English) by D.C. Lindberg. Roger Bacon and the Origins of Perspectiva in the Middle Ages. Oxford: Clarendon Press, 1996.

*Compotus 
Edited by Robert Steele. Opera hactenus inedita Rogeri Baconi (OHI) 6. Oxford: Clarendon, 1926. This work is certainly spurious as shown by Delorme. download

Works on Medicine and Alchemy

Secretum secretorum cum glossis et notulis
Edited by Robert Steele. Opera hactenus inedita Rogeri Baconi (OHI) 5. Oxford: Clarendon, 1920  download

Antidotarius
Edited by A.G. Little and E. Withington. Opera hactenus inedita Rogeri Baconi (OHI) 9. Oxford: Clarendon, 1928 download

De balneis senum et seniorum
Edited by A.G. Little and E. Withington. Opera hactenus inedita Rogeri Baconi (OHI) 9. Oxford: Clarendon, 1928 download

De compositione quarundam medicinarum
Edited by A.G. Little and E. Withington. Opera hactenus inedita Rogeri Baconi (OHI) 9. Oxford: Clarendon, 1928 download

De conservatione iuventutis
Edited by A.G. Little and E. Withington. Opera hactenus inedita Rogeri Baconi (OHI) 9. Oxford: Clarendon, 1928 download

De erroribus medicorum
Edited by A.G. Little and E. Withington. Opera hactenus inedita Rogeri Baconi (OHI) 9. Oxford: Clarendon, 1928 download

De graduatione medicinarum
Edited by A.G. Little and E. Withington. Opera hactenus inedita Rogeri Baconi (OHI) 9. Oxford: Clarendon, 1928 download

*De retardatione accidentium senectutis
Edited by A.G. Little and E. Withington. Opera hactenus inedita Rogeri Baconi (OHI) 9. Oxford: Clarendon, 1928. This work is spuriousdownload

De universali regimine senum et seniorum
Edited by A.G. Little and E. Withington. Opera hactenus inedita Rogeri Baconi (OHI) 9. Oxford: Clarendon, 1928 download

Liber sex scientiarum
Edited by A.G. Little and E. Withington. Opera hactenus inedita Rogeri Baconi (OHI) 9. Oxford: Clarendon, 1928 download

Epistola de secretis operibus artis et naturae
Edited by J. S. Brewer. Opera quaedam hactenus inedita. London: Longman, Green, Longman and Roberts, 1859 download

German translation by Nikolaus Egel. Roger Bacon, Die Neubegründung der Wissenschaft: Brief an Papst Clemens IV.; Opus maius, Teil I, II und VI; Brief über die geheimen Werke der Kunst und der Natur und über die Nichtigkeit der Magie. Hamburg: Meiner Verlag, 2017 – link

Italian translation by Francesco Bottin. La scienza sperimentale (Milano: Rusconi, 1990).

English translation by Tenney L. Davis. Roger Bacon’s Letter Concerning the Marvellous Power of Art and of Nature and Concerning the Nullity of Magic. Easton: AMS Press, 1982.

Italian translation by “a lover of truth” (amatore della verità). I segreti dell’arte e della natura e Confutazione della magia. Milano: Spartaco Giovene, 1945.

French translation by Albert Poisson. Lettre sur les prodiges de la nature et sur la nullité de la magie. Paris: Chamuel éditeur, 1893.

Compendia

Metaphysica de viciis 
Edited by Robert Steele. Opera hactenus inedita Rogeri Baconi (OHI) 1. Oxford: Clarendon, 1909  download

Compendium studii philosophiae
Edited and translated (English) by T.S. Maloney.  A Compendium of the Study of Philosophy. Oxford: Oxford University Press and The British Council, 2018 – link

German translation by Nikolaus Egel. Kompendium für das Studium der Philosophie. Hamburg: Meiner Verlag, 2015 – link

Compendium studii theologiae
Edited and translated (English) by T.S. Maloney. Leiden: Brill, 1988.