TY - JOUR T1 - Translation of a Letter from Mr. Abraham Trembley, F. R. S. to the President, with Observations upon Several Newly Discover'd Species of Fresh-Water Polypi JF - Philosophical Transactions (1683-1775) VL - 43 SP - 169 EP - 183 PY - 1753/01/01/ UR - http://dx.doi.org/10.1098/rstl.1744.0040 M3 - doi:10.1098/rstl.1744.0040 AU - Trembley, A. ER -