THE 17th CENTURY:
THE BEGINNING
YEAR
AUTHOR
COUNTRY
URINE EXAMINED
FINDING
1630
1665
1686
1687
Nicolaus F. De Peiresc
France
Human (sandy)
Crystals
Robert Hooke
UK
Human Horse
Various crystals
The Leeuwenhoek Netherlands
Antoni Van
George Hann Denmark
Globular particles
Human (sandy)
Crystals