Letters written by Leeuwenhoek during Period 3

Alle de Brieven / Collected Letters has over 350 letters. However, only those in this chronology that Leeuwenhoek designated Letter 1, Letter 2, etc. did he consider to contain publishable microscopic observations.

Date
March 1, 1687 Wrote letter of 1687-03-01 (AB 97) to James II, King of England
April 4, 1687 Wrote Letter 53 of 1687-04-04 (AB 98) to Members of the Royal Society about the structure of the teeth of elephant, pig, humans, ox, and horse and about toothache
May 9, 1687 Wrote Letter 54 of 1687-05-09 (AB 99) to Members of the Royal Society about the structure of 'stone' of the medlar and the coffee bean and acid in plants
June 13, 1687 Wrote Letter 55 of 1687-06-13 (AB 100) to Members of the Royal Society
July 11, 1687 Wrote Letter 56 of 1687-07-11 (AB 101) to Members of the Royal Society
August 6, 1687 Wrote Letter 57 of 1687-08-06 (AB 102) to Members of the Royal Society
September 9, 1687 Wrote Letter 58 of 1687-09-09 (AB 103) to Members of the Royal Society about ant eggs, larvae and its development, feeding, sting, cocoon and nest
October 17, 1687 Wrote Letter 59 of 1687-10-17 (AB 104) to Members of the Royal Society
November 28, 1687 Wrote Letter 60 of 1687-11-28 (AB 105) to Members of the Royal Society about his discovery that cochineal was an insect and his experiments with cinchona bark
May 25, 1688 Wrote Letter 61 of 1688-05-25 (AB 106) to Members of the Royal Society
July 6, 1688 Wrote Letter 62 of 1688-07-06 (AB 107) to Members of the Royal Society
August 3, 1688 Wrote Letter 63 of 1688-08-03 (AB 108) to Members of the Royal Society
August 24, 1688 Wrote Letter 64 of 1688-08-24 (AB 109) to Members of the Royal Society
September 7, 1688 Wrote Letter 65 of 1688-09-07 (AB 110) to Members of the Royal Society
September 23, 1688 Wrote letter of 1688-09-23 (AB 111) to Melchisedec Thevenot
January 12, 1689 Wrote Letter 66 of 1689-01-12 (AB 113) to Members of the Royal Society
January 12, 1689 Wrote letter of 1689-01-12 (AB 112) to Robert Boyle
April 1, 1689 Wrote Letter 67 of 1689-04-01 (AB 114) to Members of the Royal Society
September 18, 1691 Wrote letter of 1691-09-18 (AB 115) to Antonio Magliabechi
November 27, 1691 Wrote Letter 68 of 1691-11-27 (AB 116) to Members of the Royal Society
January 4, 1692 Wrote Letter 69 of 1692-01-04 (AB 117) to Members of the Royal Society
February 1, 1692 Wrote Letter 70 of 1692-02-01 (AB 118) to Members of the Royal Society
March 7, 1692 Wrote Letter 71 of 1692-03-07 (AB 119) to Members of the Royal Society
April 22, 1692 Wrote Letter 72 of 1692-04-22 (AB 120) to Richard Waller
June 24, 1692 Wrote Letter 73 of 1692-06-24 (AB 121) to Members of the Royal Society
August 12, 1692 Wrote Letter 74 of 1692-08-12 (AB 122) to Members of the Royal Society
September 16, 1692 Wrote Letter 75 of 1692-09-16 (AB 123) to Members of the Royal Society
September 23, 1692 Wrote letter of 1692-09-23 (AB 124) to Mary, Queen of Great Britain
July 1, 1693 Wrote letter of 1693-07-01 (AB 125) to Richard Waller
October 15, 1693 Wrote Letter 76 of 1693-10-15 (AB 126) to Members of the Royal Society
October 27, 1693 Wrote letter of 1693-10-27 (AB 127) to Pieter Rabus
December 8, 1693 Wrote letter of 1693-12-08 (AB 128) to Richard Waller
December 20, 1693 Wrote Letter 77 of 1693-12-20 (AB 129) to Members of the Royal Society
January 19, 1694 Wrote letter of 1694-01-19 (AB 130) to Richard Waller
January 24, 1694 Wrote Letter 78 of 1694-01-24 (AB 131) to Members of the Royal Society
February 12, 1694 Wrote letter of 1694-02-12 (AB 132) to Richard Waller
February 24, 1694 Wrote Letter 79 of 1694-02-24 (AB 133) to Members of the Royal Society
March 2, 1694 Wrote Letter 80 of 1694-03-02 (AB 134) to Members of the Royal Society
March 19, 1694 Wrote Letter 81 of 1694-03-19 (AB 135) to Members of the Royal Society
April 2, 1694 Wrote Letter 82 of 1694-04-02 (AB 136) to Members of the Royal Society
April 30, 1694 Wrote Letter 83 of 1694-04-30 (AB 137) to Members of the Royal Society
May 26, 1694 Wrote letter of 1694-05-26 (AB 138) to Richard Waller