TY - JOUR T1 - Concerning the Fall of Water Under Bridges. By Mr. J. Robertson, F. R. S. JF - Philosophical Transactions (1683-1775) VL - 50 SP - 492 EP - 499 PY - 1757/01/01/ UR - http://dx.doi.org/10.1098/rstl.1757.0064 M3 - doi:10.1098/rstl.1757.0064 AU - Robertson, J. ER -