The day of Santa Maria _della Neve_ [of the Snows] August the 2nd
1473. [Footnote: W. An. I. 1368. 1369. This date is on a drawing of
a rocky landscape. See _Chronique des Arts_ 1881 no. 23: _Leonard de
Vinci a-t-il ete au Righi le 5 aout 1473_? letter by H. de
Geymuller. The next following date in the MSS. is 1478 (see No.
663).