Record

Reference numberEL/L3/25
LevelItem
TitleAntoni van Leeuwenhoek, dated at Delft, to Hans Sloane
Date25 December 1700
DescriptionSigned autograph
On the spermatozoa of a ram; objections to Nicolaas Hartsoeker's claim to have discovered sperm first in 1678 when Leeuwenhoek had written to the Royal Society about this in 1677. This latter letter no longer exists but a transcription and translation of observations of the discovery of living spermatozoids is printed in 'Alle de brieven van Antoni van Leeuwenhoek', vol 2, p 277 and 'Philosophical Transactions', vol 12, no 142, p 1040.
7 red-chalk figures of sperm attached
Read to the Royal Society on 15 January 1701
LanguageDutch
Extent10 sides
FormatManuscript
Access statusOpen
Related materialTranscribed in JBO/10/208
English translation printed in 'Philosophical Transactions', vol 22, no 268, p 739
Transcribed and translated in 'Alle de brieven van Antoni van Leeuwenhoek', edited, illustrated and annotated by Committee of Dutch Scientists, vol 13, p 227
Fellows associated with this archive
CodeNameDates
NA8438Leeuwenhoek; Antoni van (1632 - 1723); naturalist1632 - 1723
NA8406Sloane; Sir; Hans (1660 - 1753)1660 - 1753
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