Complete Collected Letters

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Master list (pdf) of all 602 L-numbers, their Leeuwenhoek number, and their Collected Letters number

Life in Holland

in the 1600's

Woman Feeding a Cat

Work in Holland

in the 1600's

Instrument maker

Published Onsigtbare Verborgentheden (Invisible Mysteries), Letters 38, 42, 43 (3rd)

Date:

January 1, 1698

Published by Boutesteyn in Leiden

Sources

Year	Author	Title
1685	Leeuwenhoek, A. van	Onsigtbare verborgentheden

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Related events:

Date	Event
January 1, 1685	Published Onsigtbare Verborgentheden (Invisible Mysteries), Letters 38, 42, 43 (L-152, L-150, L-128)
January 1, 1691	Published Onsigtbare Verborgentheden (Invisible Mysteries), Letters 38, 42, 43 (2nd)

Related letters:

What Leeuwenhoek wrote ...
Wrote Letter L-128 of 1683-07-16 to Christopher Wren about the procreation of frogs, sperm in fowl's egg, reproduction of rabbits, little animals in frog intestines, a theory about digestion in humans and fish, and blood
Wrote Letter L-150 of 1684-07-25 to Members of the Royal Society about parts of the brain of several animals, chalk stones of gout, leprosy, and the scales of eels
Wrote Letter L-152 of 1685-01-05 to Members of the Royal Society about salts in wine and vinegar and in the stomach, the eye, the need for food and water, Descartes's theory on smallest water particles, and a theory of taste - salt, sour and sweet

Related people:

Cornelis Boutesteyn

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