714

Notes on the casting of the Sforza monument.

Salt may be made from human excrements, burnt and calcined, made into lees and dried slowly at a fire, and all the excrements produce salt in a similar way and these salts when distilled, are very strong.

[Footnote: VASARI repeatedly states, in the fourth chapter of his Introduzione della Scultura, that in preparing to cast bronze statues horse-dung was frequently used by sculptors. If, notwithstanding this, it remains doubtful whether I am justified in having introduced here this text of but little interest, no such doubt can be attached to the sketch which accompanies it.]

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.
. . .
Some practical hints.
706,
707,
708,
709
Notes on the casting of the Sforza monument.
710,
711,
712,
713,
714,
715
Models for the horse of the Sforza monument.
716,
717,
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
. . .