1. The Collected Letters of Antoni van Leeuwenhoek. Part I. Edited, illustrated and annotated by a committee of Dutch scientists. Amsterdam, Swets & Zeitlinger, Ltd, 1939
2. Vol 3, 1948, pp 87–95 (1)
3. Vol 4, 1952, pp 285–287 (1)
4. : Analysis of the calculus vesicae, 1776, The Chemical Essays of Charles William Scheele. Translated from the transactions of the Academy of Sciences at Stockholm. London, J. Murray, 1787, p 199