Wrote Letter L-439 of 1705-05-25 to the members of the Royal Society about crystals from various minerals that Pieter Valkenier left after his recent visit and experiments to dissolve and recrystallize them
Date:
May 25, 1705
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 …
Description of crystals from calcite, gypsum, rock-crystal, and some few inclusions, such as chlorite and tourmaline. Experimenting with dissolving crystals and making them crystallize again. Wrong observation of a fossilized caterpillar in rock-crystal.
