TY - JOUR T1 - Part of a Letter from Mr. Anthony van Leeuwenhock, F. R. S. to Mr. James Petiver, F. R. S. Containing Some Microscopical Observations upon the Animalcula in Semine of Young Rams JF - Philosophical Transactions (1683-1775) VL - 27 SP - 316 EP - 320 PY - 1753/01/01/ UR - http://dx.doi.org/10.1098/rstl.1710.0026 M3 - doi:10.1098/rstl.1710.0026 AU - van Leeuwenhock, A. ER -