Skip to main content
Home
  • Site Guide
  • Resources
  • Search
  • About

Top Menu - main site navigation

  • Welcome
    • Overview
  • Biography
    • Chronology
    • Bibliography
    • Portraits
    • Homes
    • Videos
    • Legacy
  • Chronology
    • Heritage: from 1246
      • 1246 - 1583
      • 1584 - 1614
      • 1615 - 1631
    • Youth: to age 40
      • 1632 - 1653
      • 1654 - 1672
    • Early Career: 40 to 70
      • 1673 - 1679
      • 1679 - 1686
      • 1687 - 1694
      • 1694 - 1702
    • Late Career: after 70
      • 1702 - 1712
      • 1712 - 1719
      • 1720 - 1776
  • Family
    • Leeuwenhoek
      • Maria Thonis
      • Maria's estate
      • Family members
      • Related families
      • Chronology
      • Property
    • De Meij
      • Barbara Elias
      • Chronology
      • Property
    • Swalmius
      • Cornelia Johannes
      • Chronology
      • Property
    • De Molijn
      • Margrieta Philips
      • Family members
      • Related families
      • Chronology
      • Property
    • Van den Berch
      • Margrietke Jacobs
      • Family members
      • Related families
      • Chronology
      • Property
    • Hogenhouck
      • Neeltje Jans
      • Family members
      • Chronology
      • Property
  • Civic career
    • Student
      • Mentors
      • Chronology
    • Merchant
    • City Official
      • Vermeer chronology
  • Scientific career
    • Microscopes
    • Specimens
    • Microscopists
    • Visitors
      • Chronology
    • Royal Society
  • Letters
    • Publications
      • First editions
      • All editions
    • Figures
    • Phil. Transactions
      • List of articles
    • Period 1 1673-1679
      • Chronology
    • Period 2 1679-1686
      • Chronology
    • Period 3 1687-1694
      • Chronology
    • Period 4 1694-1702
      • Chronology
    • Period 5 1702-1712
      • Chronology
    • Period 6 1712-1719
      • Chronology
    • Period 7 1720-1723
      • Chronology
  • Delft in Holland
    • Views and maps
    • City history
    • City government
    • City finances
    • Public buildings
    • Public records
    • Contemporaries
      • Baptisms
      • Marriages
      • Wills
      • Burials
      • Family property
    • Life in Holland
      • Jan Luyken
      • Pieter de Hooch
      • Jan Steen
      • Adriaen van Ostade
      • Gabriel Metsu

Which number?

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

Life in Holland

in the 1600's

Hunter's Gift

Man Writing a Letter

The Poultry Woman

Woman Feeding a Cat

The Letter-Writer Surprised

Work in Holland

in the 1600's

Spinner

Miller

Turner

Book printer

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
Learn more
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
Tags
Life: 
Antony
Science: 
Publications

Life in Holland

in the 1600's

Feast of Saint Nicolaas
Life of Man
Scholar at His Desk
Sitting Men and Woman in Garden

Paying the Hostess

At the Linen Closet