TY - JOUR T1 - A Series of Observations on, and a Discovery of, the Period of the Variation of the Light of the Star Marked $\delta $ by Bayer, Near the Head of Cepheus. In a Letter from John Goodricke, Esq. to Nevil Maskelyne, D. D. F. R. S. and Astronomer Royal JF - Philosophical Transactions of the Royal Society of London (1776-1886) VL - 76 SP - 48 EP - 61 PY - 1786/01/01/ UR - http://dx.doi.org/10.1098/rstl.1786.0002 M3 - doi:10.1098/rstl.1786.0002 AU - Goodricke, J. AU - Bayer, . ER -