Wrote Letter L-549 of 1717-03-06 to the members of the Royal Society about pig brains, apples, and coconuts; blood circulation nourishes; new technique to examine brains; tea and coffee keep the blood thin

Date: 
March 6, 1717
Standard reference information
L-number: 
L-549
Leeuwenhoek's number: 
XXXIV
Collected Letters number: 
333
Collected Letters volume: 
18

Leeuwenhoek wrote this letter about fibres and blood vessels pig brains compared to vascular bundles in apple and the rind of coconut, circulation of the blood and its role of nourishing the body. Using a new technique, L. is after many years able to examine a pig’s brains; the medical benefit of drinking tea and coffee to keep the blood thin.