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parts of the mould and the quantity of metal it will take to fill
them, and give so much to the furnace that it may afford to each
part its amount of metal; and this you may know by weighing the clay
of each part of the mould to which the quantity in the furnace must
correspond. And this is done in order that the furnace for the legs
when filled may not have to furnish metal from the legs to help out
the head, which would be impossible. [Cast at the same casting as
the horse the little door]
[Footnote: The importance of the notes included under this number is
not diminished by the fact that they have been lightly crossed out
with red chalk. Possibly they were the first scheme for some fuller
observations which no longer exist; or perhaps they were crossed out
when Leonardo found himself obliged to give up the idea of casting
the equestrian statue. In the original the first two sketches are
above l. 1, and the third below l. 9.]
7
11.
THE MOULD FOR THE HORSE.
Make the horse on legs of iron, strong and well set on a good
foundation; then grease it and cover it with a coating, leaving each
coat to dry thoroughly layer by layer; and this will thicken it by
the breadth of three fingers. Now fix and bind it with iron as may
be necessary. Moreover take off the mould and then make the
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