Wrote Letter L-128 of 1683-07-16 to Christopher Wren about the procreation of frogs, sperm in fowl's egg, reproduction of rabbits, little animals in frog intestines, a theory about digestion in humans and fish, and blood

Date: 
July 16, 1683
Standard reference information
L-number: 
L-128
Leeuwenhoek's number: 
38
Collected Letters number: 
72
Collected Letters volume: 
4

Text of the letter in the original Dutch and in English translation from Alle de Brieven / The Collected Letters at the DBNL - De Digitale Bibliotheek voor de Nederlandse Letteren.

The original manuscript on 22 quarto pages, written and signed by Leeuwenhoek, is preserved at the Royal Society (MS. 1897. Early Letters L1.68).