Primary Sources: Medieval and Renaissance Periods: Galilei, Galileo

Collection of free online versions of Galileo's works.

"The manuscript consists of more than 300 pages. They contain numerous short texts in Latin and Italian, representing sketches of proofs, but also extended drafts intended for publication, calculations, tables of calculated numbers, diagrams, and even some documents pertaining to experiments performed by Galileo. The manuscript is considered the essential source of information on the intellectual route followed by Galileo in achieving the insights he submitted in the Discorsi."

From the Modern History Sourcebook at Fordham University

From the Famous Trials website at UMKC School of Law - "A collection of primary documents, essays, ancient texts, maps, photos, paintings and other materials relating to the trial in 1633 of Galileo Galilei"