1. Mechanics: The three main treatises and the “Aliud commentum” version (Latin and English) are published in "The Medieval Science of Weights", ed. Ernest A. Moody and Marshall Clagett (Madison: University of Wisconsin Press, 1952). The commentaries are also found in Joseph E. Brown, “The ‘Scientia de ponderibus’ in the Later Middle Ages,” PhD. Dissertation, University of Wisconsin, 1967. The "Liber de ponderibus" and the “Aliud commentum” version were published by Petrus Apianus (= Peter Bienewitz) in Nuremberg, 1533; and the "De ratione ponderis" was published by Nicolò Tartaglia in Venice, 1565.