TY - JOUR T1 - On Some Heterogenetic Modes of Origin of Flagellated Monads, Fungus-Germs, and Ciliated Infusoria JF - Proceedings of the Royal Society of London (1854-1905) VL - 20 SP - 239 EP - 264 PY - 1871/01/01/ UR - http://dx.doi.org/10.1098/rspl.1871.0052 M3 - doi:10.1098/rspl.1871.0052 AU - Bastian, H. ER -