Wrote Letter L-343 of 1698-05-09 to the members of the Royal Society about the compound eye of a beetle and the number of facets, the human cornea, drone flies, and gnat brains and leg muscles

Date: 
May 9, 1698
Standard reference information
L-number: 
L-343
Leeuwenhoek's number: 
111
Collected Letters number: 
193
Collected Letters volume: 
12

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 the compound eye of a beetle and calculations about the number of facets; observations through the human cornea; the legs, cornea and ommatidia of a drone fly; the brain of a gnat; muscle from the leg of a gnat