Wrote Letter L-236 of 1694-02-24 to the members of the Royal Society about his experiments with solid phosphorus
Date:
February 24, 1694
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 about his experiments with solid phosphorus during and after a 1691 visit from Johan Daniel Kraft, to whom phosphorus's discoverer Hennig Brand had sold the secret of its preparation.