TY - JOUR T1 - A Method, by Which a Glass of a Small Plano-Convex Sphere May be Made to Refract the Rayes of Light to a Focus of a Far Greater Distance, Than is Usual JF - Philosophical Transactions (1665-1678) VL - 1 SP - 202 EP - 203 PY - 1753/01/01/ UR - http://dx.doi.org/10.1098/rstl.1665.0088 M3 - doi:10.1098/rstl.1665.0088 ER -