Wrote Letter L-556 of 1717-08-19 to Adriaan Swalmius about membranes inside an eggshell, salt crystals from an eggshell, and how birds and oysters produce shells

Date: 
August 18, 1717
Standard reference information
L-number: 
L-556
Leeuwenhoek's number: 
XL
Collected Letters number: 
339
Collected Letters volume: 
18