The Royal Society read the latter part of Letter 42 of 1684-07-25

January 17, 1685

Birch, History, vol. IV, p. 355, 7 January 1684/5 (O.S.) in London:

The latter part of Mr. LEEWENHOECK's letter of July 25, 1684, was read, being observations on the brain of an ox and sparrow; on moxa, and that cotton is the fittest succcdaneum for it; on the chalk bred in men, who have long had the gout: on the leprosy, as far as people are said to have it in Holland: on eels, in which he discovered both scales and fins.