TY - JOUR T1 - Observations on a Remarkable Coral-Line, in a Letter from Mr. John Ellis to the Rev. Thomas Birch, D. D. Secret. R. S. JF - Philosophical Transactions (1683-1775) VL - 48 SP - 115 EP - 117 PY - 1753/01/01/ UR - http://dx.doi.org/10.1098/rstl.1753.0018 M3 - doi:10.1098/rstl.1753.0018 AU - Ellis, J. ER -