TY - JOUR T1 - Extract of a Letter from Mr. Henry Green to Mr. James Ayschough, Optician, in Ludgate-Street, Relating to the Earthquake Felt Sept. 30. 1750 JF - Philosophical Transactions (1683-1775) VL - 46 SP - 723 EP - 724 PY - 1753/01/01/ UR - http://dx.doi.org/10.1098/rstl.1749.0167 M3 - doi:10.1098/rstl.1749.0167 AU - Green, H. ER -