TY - JOUR T1 - Conjectures upon the Nature of Intermitting and Reciprocating Springs. By Mr. Joseph Atwell, F. R. S. JF - Philosophical Transactions (1683-1775) VL - 37 SP - 301 EP - 316 PY - 1753/01/01/ UR - http://dx.doi.org/10.1098/rstl.1731.0054 M3 - doi:10.1098/rstl.1731.0054 AU - Atwell, J. ER -