TY - JOUR T1 - An Improved Solution of a Problem in Physical Astronomy; By Which Swiftly Converging Series are Obtained, Which are Useful in Computing the Perturbations of the Motions of the Earth, Mars, and Venus, by Their Mutual Attraction. To Which is Added an Appendix, Containing an Easy Method of Obtaining the Sums of Many Slowly Converging Series Which Arise in Taking the Fluents of Binomial Surds, &c. By the Rev. John Hellins, F. R. S. Vicar of Potter's Pury, in Northamptonshire. In a Letter to the Rev. Nevil Maskelyne, D. D. F. R. S. and Astronomer Royal JF - Philosophical Transactions of the Royal Society of London (1776-1886) VL - 88 SP - 527 EP - 566 PY - 1798/01/01/ UR - http://dx.doi.org/10.1098/rstl.1798.0023 M3 - doi:10.1098/rstl.1798.0023 AU - Hellins, J. ER -