Specimens: Currant bush and seeds

Early in his career, Leeuwenhoek used currant seeds as a unit of measurement

Letter 2 of 15 August 1673

Letter 33 [21] of 5 October 1677

Later, he several times mentioned currant bushes among groups of similar trees and bushes, especially when he discussed the lice (aphids) that grew on such plants. Also, see:

Letter 88 [47] of 12 October 1685, currant seeds.

Letter 120 [72] of 22 April 1692, currant seeds.

Letter 143 [88] of 1 May 1695, currant buds.

Letter 147 [90] of 10 July 1695, currant bush and its insects.

Letter 329 [XXX] of 17 November 1716, currant seeds, why so many.

temp holding tax :