- Date
- 1669.09.05
- Ep
- 41
- Sender
- Benedictus Spinoza, de
- Sent from
- -
- Recipient
- Jarig Jelles
- Received in
- -
- OP NO.
- XLVI
- OP PP.
- 536–8v
- NS OP.
- XLVI
- NS PP.
- 588–90
Annotations
Sketch of a piping system to explain an experiment in the mechanics of fluid dynamics (lost). Perhaps, the letter also contained a drawing of an improvised leverage system. Printed in OP/NS.