TY - JOUR T1 - Microscopical Researches in High Power Definition JF - Proceedings of the Royal Society of London (1854-1905) VL - 31 SP - 260 EP - 278 PY - 1880/01/01/ UR - http://dx.doi.org/10.1098/rspl.1880.0026 M3 - doi:10.1098/rspl.1880.0026 AU - Royston-Pigott, G. ER -