TY - JOUR T1 - A Letter from Mr. Anth. Van Leeuwenhoek, F. R. S. Containing Some Microscopical Observations on the Particles of Chrystalliz'd Sugar, &c. and His Manner of Observing the Circulation of the Blood in an Eel JF - Philosophical Transactions (1683-1775) VL - 26 SP - 444 EP - 449 PY - 1753/01/01/ UR - http://dx.doi.org/10.1098/rstl.1708.0071 M3 - doi:10.1098/rstl.1708.0071 AU - van Leeuwenhoek, A. ER -