TY - JOUR T1 - A Catoptric Microscope. By Robert Barker, M. D. F. R. S. JF - Philosophical Transactions (1683-1775) VL - 39 SP - 259 EP - 261 PY - 1753/01/01/ UR - http://dx.doi.org/10.1098/rstl.1735.0052 M3 - doi:10.1098/rstl.1735.0052 AU - Barker, R. ER -