TY - JOUR T1 - Extract of a Letter from J. Franklin, Esq. Relative to a Luminous Arch. Communicated by Sir Joseph Banks, Bart. P. R. S. JF - Philosophical Transactions of the Royal Society of London (1776-1886) VL - 80 SP - 46 EP - 46 PY - 1790/01/01/ UR - http://dx.doi.org/10.1098/rstl.1790.0009 M3 - doi:10.1098/rstl.1790.0009 AU - Franklin, J. AU - Banks, J. ER -