Wrote Letter L-370 of 1700-06-14 to answer Hans Sloane's Letter L-369 that he has examined the sperm of many animals, but if there is any animal that the Royal Society would like him to investigate, he will do so.
Date:
June 14, 1700
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
Leeuwenhoek wrote this letter to answer Sloane's Letter L-369 of 8 June 1700 (28 May 1700 O.S.), which followed Sloane's discussion of a research proposal discussed at the meeting of the Royal Society of 22 May 1700, O.S. (JBO.10.184), Leeuwenhoek says that he has examined the sperm of many animals, but if there is any animal that the Royal Society would like him to investigate, he will do so.