(1) (p. 47). Etigene Muntz, Leonardo do Vinci, Artist, Thinker, and Man of Science, 2 vols., New York, 1892. Vol. II., p. 73.
b3s3PdvZR7UzB7tuEKsvuBB1PRhkhmw9yF3oFjXGa+6ISNxivHasQ1AQDrMgB+bR
