TY - JOUR T1 - An Account of Two Mock-Suns, and an Arc of a Rainbow Inverted, with an Halo, and Its Brightest Arc, Seen on Sunday and Monday, Octob. 22, & 23. 1721. at Lyndon, Comitat' Rutland, Communicated by the Rev. Mr. William Whiston, M. A. Sometime Professor of the Mathematicks in the University of Cambridge JF - Philosophical Transactions (1683-1775) VL - 31 SP - 212 EP - 215 PY - 1753/01/01/ UR - http://dx.doi.org/10.1098/rstl.1720.0052 M3 - doi:10.1098/rstl.1720.0052 AU - Whiston, W. ER -