TY - JOUR T1 - Of the Irregularities in the Planetary Motions, Caused by the Mutual Attraction of the Planets: In a Letter to Charles Morton, M. D. Secretary to the Royal Society, by Charles Walmesley, F. R. S. and Member of the Royal Academy of Sciences at Berlin, and of the Institute at Bologna JF - Philosophical Transactions (1683-1775) VL - 52 SP - 275 EP - 335 PY - 1761/01/01/ UR - http://dx.doi.org/10.1098/rstl.1761.0053 M3 - doi:10.1098/rstl.1761.0053 AU - Walmesley, C. ER -