Part of a Letter from Mr Antony van Leeuwenhoek, concerning the Worms in Sheeps Livers, Gnats, and Animalcula in the Excrements of Frogs
Journal:
Philosophical Transactions of the Royal Society
Volume:
22
Publisher:
Royal Society
Year:
1700
pages 509-518 letter written 1700-01-02 Maty lists as two, one for frogs, one for gnats
