Have Avicenna's work on useful inventions translated; spectacles
with the case, steel and fork and...., charcoal, boards, and paper,
and chalk and white, and wax;.... .... for glass, a saw for bones
with fine teeth, a chisel, inkstand ........ three herbs, and Agnolo
Benedetto. Get a skull, nut,--mustard.

Boots,--gloves, socks, combs, papers, towels, shirts,....
shoe-tapes,--..... shoes, penknife, pens. A skin for the chest.

[Footnote: 4. Lapis. Compare Condivi, _Vita di Michelagnolo
Buonarotti_, Chap. XVIII.: _Ma egli_ (Michelangelo) _non avendo che
mostrare, prese una penna (percioche in quel tempo il lapis non era
in uso) e con tal leggiadria gli dipinse una mano ecc._ The incident
is of the year l496.--Lapis means pencil, and chalk (_matita_).
Between lines 7 and 8 are the texts given as Nos. 819 and No. 7.]

Undated memoranda (1435-1457).