Reference numberEL/L1/29
TitleLetter, from Antoni van Leeuwenhoek to Henry Oldenburg, dated at Delft
CreatorLeeuwenhoek; Antoni van (1632-1723); tradesman and microscopist
Date5 October 1677
DescriptionSigned autograph
Theory for the existence of different skin colours; observations of the reproduction of eels and their blood; observations of the reproduction of lice; compares the larvae of fleas with silk-worms; discusses Mr Swammerdam's views on fleas; demonstrating a grain of millet as a measure of capacity and states that he sends 8 testimonials about this (inserted after EL/L1/30); numbers of organisms living in a drop of water
Testimonials from Benedict Haan, Henry Cordes, R Gordon, J Boogert, Robert Poitevin, WV Burch, Albert Hodenpijl, Alex Petrie (in Latin, Dutch and English) as witnesses to Leeuwenhoek's demonstrations
Translation of letter in Latin see EL/L1/30
Transcribed and translated in 'Alle de brieven van Antoni van Leeuwenhoek', edited, illustrated and annotated by Committee of Dutch Scientists, vol 2, p 237
For summary see 'The correspondence of Henry Oldenburg', ed and trans by A Rupert Hall & Marie Boas Hall, vol 13, p 348
Place originDelft, South Holland, (United Provinces) Netherlands
Origin coordinates52.00667, 4.35556
Access statusOpen
Related records in the catalogueEL/L1/30
URL descriptionAlso available on Early Modern Letters Online
Fellows associated with this archive
NA8001Oldenburg; Henry (c1619 - 1677); scientific correspondentc1619 - 1677
NA8438van Leeuwenhoek; Antoni (1632 - 1723); tradesman and microscopist1632 - 1723
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