TY - JOUR T1 - A Letter from Mr. Stephen Gray to Dr. Mortimer, Secr. R. S. Containing a Farther Account of His Experiments concerning Electricity JF - Philosophical Transactions (1683-1775) VL - 37 SP - 285 EP - 291 PY - 1753/01/01/ UR - http://dx.doi.org/10.1098/rstl.1731.0050 M3 - doi:10.1098/rstl.1731.0050 AU - Gray, S. ER -