Part of a Letter from Mr Antony Van Lewenhoek, F. R. S. Dated at Delft in Holland, Sept. 25. 1699. concerning the Circulation and Stagnation of the Blood in Tadpoles

A. van Lewenhoek
1700 Philosophical Transactions of the Royal Society of London  
doi:10.1098/rstl.1700.0002 fatcat:vylhaslxkvaflhrdlvjewmj5ku