| RefNo | EL/L1/62 |
| Level | Item |
| Title | Letter, from Antoni van Leeuwenhoek to Robert Hooke, dated at Delft |
| Date | 12 November 1680 |
| Description | Signed autograph
Observing the lees in wine; experiments with fermenting wine; comparing the structure of yeast cells with erythrocytes (red blood cells); examining yeast in syrups from an apothecary's shop; observing particles in rain-water; an analysis of chyle from a cow, fat globules in milk, composition of urine; examining particles in air; discusses the function of the heart and the circulation of blood in the body; observations of the tracheae of a fly, a flea, and a cockroach; observations of the copulation of cockchafers and of dragonflies, the spermatozoids of the grass-hopper, the gnat, the flea, and of the fly; examination of mites; calculating the number of micro-organisms in a grain of sand
Eight figures attached
English translation see EL/L1/63
Transcribed and translated in 'Alle de brieven van Antoni van Leeuwenhoek', edited, illustrated and annotated by Committee of Dutch Scientists, vol 3, p 279
B&W negative, Red drawing of spermatozoon of dragonfly, Box N101. IM/005320 |
| Language | Dutch |
| Extent | 19p |
| Format | Manuscript |
| Place origin | Delft, South Holland, (United Provinces) Netherlands |
| Origin coordinates | 52.00667, 4.35556 |
| Digital images | View item on Science in the Making |
| AccessStatus | Open |
| RelatedRecord | IM/005320 |
| EL/L1/63 |
| URLDescription | Also available on Early Modern Letters Online |
| URL | http://emlo.bodleian.ox.ac.uk/profile/work/dbb623f0-2727-43eb-9677-7637f5894215 |
Fellows associated with this archive
| Code | PersonName | Dates |
| NA8242 | Hooke; Robert (1635 - 1703); natural philosopher | 1635 - 1703 |
| NA8438 | Leeuwenhoek; Antoni van (1632 - 1723); tradesman and microscopist | 1632 - 1723 |