TY - JOUR T1 - An Account of the Copper-Springs Lately Discovered in Pennsylvania: By John Rutty, M. D. of Dublin. Communicated by Mr. Peter Collinson, F. R. S. JF - Philosophical Transactions (1683-1775) VL - 49 SP - 648 EP - 651 PY - 1755/01/01/ UR - http://dx.doi.org/10.1098/rstl.1755.0100 M3 - doi:10.1098/rstl.1755.0100 AU - Rutty, J. AU - Collinson, P. ER -