738

On bronze casting generally.

HOW TO PROCEED TO BREAK A LARGE MASS OF BRONZE.

If you want to break up a large mass of bronze, first suspend it, and then make round it a wall on the four sides, like a trough of bricks, and make a great fire therein. When it is quite red hot give it a blow with a heavy weight raised above it, and with great force.

Taken from The Notebooks of Leonardo da Vinci edited by Jean Paul Richter, 1880.

X * XII
Notebooks of Leonoardo da Vinci
XI: The notes on Sculpture.
. . .
718
Occasional references to the Sforza monument.
719,
720,
721,
722,
723,
724
The project of the Trivulzio monument.
725
The mint of Rome.
726
On the coining of medals.
727,
728
On stucco.
729,
730
On bronze casting generally.
731,
732,
733,
734,
735,
736,
737,
738,
739,
740