[Footnote: This and the previous text it may be remarked are the only mention made by Leonardo of his father; Nos. 1526, 1527 and No. 1463 are of the year 1504.]
1374.
Begun by me, Leonardo da Vinci, on the l2th of July 1505.
[Footnote: Thus he writes on the first page of the MS. The title is on the foregoing coversheet as follows: Libro titolato disstrafformatione coe (cioe) d'un corpo nvn (in un) altro sanza diminuitione e acresscemento di materia.]
1375.
Begun at Milan on the l2th of September 1508.
[Footnote: No. 1528 and No. 1529 belong to the same year. The text Vol. I, No. 4 belongs to the following year 1509 (1508 old style); so also does No. 1009.— Nos. 1022, 1057 and 1464 belong to 1511.]
1376.
On the 9th of January 1513.
[Footnote: No. 1465 belongs to the same year. No. 1065 has the next date 1514.]