Who wrote letters to Leeuwenhoek?

Of the no doubt thousands of letters Leeuwenhoek received over his adult life, very few have survived. Most of them are from officers of the Royal Society; copies are in its Letter Books Original. Some letters by Huygens, Heinsius, and Leibniz are preserved in Dutch and German archives. The letter by Bidloo was published at the time. Many of the letters, for example, those by Rabus, are available at the ePistolarium.

Letters from Magliabechi are known only from quotations in Rabus's Boekzaal van Europe. Those letters and many of the lost letters known only by reference in surviving letters are not included here, with the exception of Oldenburg's. None of the Olderburg letters has survived but all that are known are listed on here.

The letters are listed chronologically under What happened? below. On the list here, alphabetical by sender's last name, the dates for letters from England are Old Style; those for letters from Holland and Germany are New Style. However, on the Lens on Leeuwenhoek timeline, the dates for some of Oldenburg's letters use the New Style dates so that the conversation between them can be more easily followed.

Johan Arnoldi

1698-01-15 ^

Francis Aston

1683-02-16
1683-03-17
1683-03-23 ^
1683-10-01
1684-02-26

Govert Bidloo

1698-03-21

Herman Boerhaave

1716-10-10 ^
1716-11-04 ^

Francesco Corner

1705-10-00 ^
1705-12-00 ^

Thomas Gale

1680-03-07
1686-04-12

George Garden

1693-09-03 *

Luca Giamberti

1697-07-19 ^

Benedictus Haan

1694-02-28 *

Edmond Halley

1686-03-02
1686-05-15

Anthonie Heinsius

1683-09-10
1685-07-24 ^
1685-09-21
1715-02-28 *

Robert Hooke

1677-12-01
1678-01-01 ^ #
1678-04-18
1679-01-23 $
1680-02-02
1680-04-22
1682-03-10
1682-03-16

Christiaan Huygens

1689-03-06 ^
1690-03-06
1692-10-20 *

Constantijn Huygens

1677-12-08 *

James Jurin

1722-02-22 *
1722-05-15 *
1722-12-24 *
1723-06-25 *

Gottfried Leibniz

1715-08-05 *
1715-10-29 *
1716-03-31 *
1716-09-25 * ^

Antonio Magliabechi

1686-04-16 ^
1691-05-27 <
1695-10-12 <
1695-10-14 <
1695-10-23 <
1695-11-05 <
1696-03-06 ^
1696-06-05 ^
1696-07-08 ^
1696-12-18 <
1697-06-01 <
1697-08-01 <
1697/98      <
1697-04-     <
1698-06-     <
1698-          <
1699-09-08 <
1701-          <

Henry Oldenburg

1674-04-24
1674-08-20
1674-10-26
1674-12-24
1675-02-19
1675-04-12
1675-08-12
1675-12-28
1676-02-03
1676-05-04
1676-10-08
1676-10-16
1676-11-02
1677-02-12
1677-02-22
1677-04-10
1677-07-28

Peter Rabus

1693-08-18
1696-05-16
1696-07-30

Hans Sloane

1700-05-28 *
1701-09-16 *
1701-11-07 *
1707-04-23 ^
1713-10-13 *

John Somers

1701-11-04 ^

William Stanley

1691-09-11 ^

Adriaan Swalmius

1717-08-01

Richard Waller

1692-02-02 *
1693-04-28 *
1694-01-31 *
1694-04-22 ^
1714-02-20 ^
1714-07-08
1714-07-16 &
1714-08-19

Notes

Only the letters marked * are in Alle de Brieven / Collected Letters.

The texts of the letters marked ^ are not yet on Lens on Leeuwenhoek.

# Hooke's letter, also signed by Grew, is referred to at the beginning of Letter No. 38 [24] of 18 March 1678. 1 January in London would have been 12 January in Delft.

$ Hooke's letter of 23 January 1679 is noted by Heniger's 1969 "Verslag" as being in the British Museum, along with an undated letter, neither of which I have seen.

The letter from Constantijn Huygens is known only from its inclusion in Leeuwenhoek's Letter 196 [113] of 17 December 1698.

The letters from Magliabechi marked < are not yet in the Lens on Leeuwenhoek chronologies. Dutch trans of 12 Oct 95 letter in Boekzaal July Aug 1695 pp 538-543.

The letter from John Somers is mentioned by Sloane in his letter to Leeuwenhoek of 7 November 1701 (18 November in Delft) and by Leeuwenhoek in his letter to Somers of 6 December 1701.

The letter from Swalmius is mentioned by Leeuwenhoek at the beginning of his response, Letter 345 [XL] of 19 August 1717.

The letter from Waller marked & is noted in Heniger's 1969 "Verslag van het werkbezoek van de redacteur aan de Royal Society te London, 5-15.X.1969". He wrote that the Letter Books Original has the letter from Waller of 8 July 1714 and that the Letters Books Copy had one from 16 July 1714. I have not seen that letter.