| Description | Signed autograph
Discussing Regnier de Graaf's theories about ovulation in women; further observations about sperm of rabbits and dogs; concerning the structure of bone and hair
Text refers to eight figures of male sperm, bone and hair but only three ink figures of sperm, numbered Figures 1, 3, 4 , are attached
English translation see EL/L1/37
Transcribed and translated in 'Alle de brieven van Antoni van Leeuwenhoek', edited, illustrated and annotated by Committee of Dutch Scientists, vol 2, p 355
English extract in 'Philosophical Transactions', vol 12, issue 140, p 1002
B&W negative, of one drawing, Box N101. IM/005318 |
| Place origin | Delft, South Holland, (United Provinces) Netherlands |