Chicago: Northwestern University Press, 1939.
Frontispiece portrait with b/w drawings and diagrams throughout. xxi, 300pp. 8vo, blue cloth (faded spine and edgeworn). Chicago: Northwestern University Press, 1939. A very good copy.
Translated from the Italian and Latin into English by Henry Crew and Alfonso de Salvio. With an introduction by Antonio Favaro.
Condition: Very Good