Wrote Letter L-391 of 1701-06-21 to Hans Sloane about the claimed qualtity of other people's magnifying glasses, injuries to the cornea, and the impossibility of observing the smallest particles of matter

Date: 
June 21, 1701
Standard reference information
L-number: 
L-391
Leeuwenhoek's number: 
139
Collected Letters number: 
227
Collected Letters volume: 
13

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 …

Quality of magnifying glasses. Cornea, blood vessels, and small particles (crystalline humour) in L.'s own eye.

On the qualtity of magnifying glasses, and injuries to the cornea; the impossibility of observing the smallest particles of matter.