TY - JOUR T1 - Part of a Letter from Mr. Leuvenhook, Dated Delft 23 d. of June, 1699. Concerning His Answers to Objections Made to His Opinions Concerning the Animalcula Semine Masculine JF - Philosophical Transactions (1683-1775) VL - 21 SP - 270 EP - 272 PY - 1753/01/01/ UR - http://dx.doi.org/10.1098/rstl.1699.0046 M3 - doi:10.1098/rstl.1699.0046 AU - Leuvenhook, M. ER -