TY - JOUR T1 - An Account of Some Luminous Arches. In a Letter from Edward Pigott, Esq. to Sir Henry C. Englefield, Bart. F. R. S. JF - Philosophical Transactions of the Royal Society of London (1776-1886) VL - 80 SP - 47 EP - 50 PY - 1790/01/01/ UR - http://dx.doi.org/10.1098/rstl.1790.0010 M3 - doi:10.1098/rstl.1790.0010 AU - Pigott, E. ER -