Complete Collected Letters

Volumes 18, 19, and 20 of Alle de Brieven / Collected Letters became available at the end of 2024, completing the series begun in 1939. Download for free.

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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

The Virginal Player

Woman Feeding a Cat

The Letter-Writer Surprised

Work in Holland

in the 1600's

Published Cinnaber Naturalis (Natural Cinnabar), Letters 48 - 52 (2nd)

Date:

January 1, 1713

Langerak published this edition in Leiden.

Sources

Year	Author	Title
1686	Leeuwenhoek, A. van	Cinnaber Naturalis

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Related events:

Date	Event
January 1, 1686	Published Cinnaber Naturalis (Natural Cinnabar), Letters 48 - 52

Related letters:

What Leeuwenhoek wrote ...
Wrote Letter L-168 of 1686-01-22 to members of the Royal Society about cinnabar naturalis, gunpowder, saltpeter, and air made by gunpowder and crab's eyes
Wrote Letter L-173 of 1686-04-02 to members of the Royal Society about the structure of bone, the bark of trees, skin and scales, the moisture evaporating from his body, and a little peeling piece of skin
Wrote Letter L-175 of 1686-05-14 to members of the Royal Society about gall-nuts found on oak trees and the germination of plants
Wrote Letter L-177 of 1686-06-10 to members of the Royal Society about seeds of cotton, kapok, Bupariti, and coconuts, the reproduction of shrimp and lobster, and the eggs of shell fish
Wrote Letter L-178 of 1686-07-10 to members of the Royal Society about the growth and durability of wood felled in different seasons and countries, the annual growth rings, and how wooden barrels can be made watertight

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