TY - JOUR T1 - A Letter from Mr. Anthouy Van Leeuwenhoek, F. R. S. containing Some Further Microscopical Observations on the Animalcula Found Upon Duckweed, &c. JF - Philosophical Transactions (1683-1775) VL - 28 SP - 160 EP - 164 PY - 1753/01/01/ UR - http://dx.doi.org/10.1098/rstl.1713.0016 M3 - doi:10.1098/rstl.1713.0016 AU - Leeuwenhoek, A. ER -