TY - JOUR T1 - On the Rectification of the Hyperbola by Means of Two Ellipses; Proving That Method to be Circuitous, and Such as Requires Much More Calculation Than Is Requisite by an Appropriate Theorem: In Which Process a New Theorem for the Rectification of That Curve Is Discovered. To Which are Added Some Further Observations on the Rectification of the Hyperbola: Among Which the Great Advantage of Descending Series over Ascending Series, in Many Cases, Is Clearly Shown; And Several Methods Are Given for Computing the Constant Quantity by Which Those Series Differ from Each Other. Being an Appendix to His Former Paper on the Rectification of the Hyperbola, Inserted in the Philosophical Transactions for the Year 1802 JF - Philosophical Transactions of the Royal Society of London (1776-1886) VL - 101 SP - 110 EP - 149 PY - 1811/01/01/ UR - http://dx.doi.org/10.1098/rstl.1811.0007 M3 - doi:10.1098/rstl.1811.0007 AU - Hellins, J. ER -