‎"IVORY, JAMES.‎
‎A new Method of deducing a first Approximation to the Orbit of a Comet from the three Geocentric Observations. Read February 17, 1814.‎

‎(London, W. Bulmer and Co., 1814). 4to. No wrappers as extracted from ""Philosophical Transactions"" 1814 - Part I. Pp. 121-186 and 1 engraved plate.Clean and fine.‎

Reference : 42622

‎First printing of a major paper by Ivory concerning the more difficult problems of calculating orbits of comets than the calculation of the orbits of planets.""Ivory's scientific reputation, for which he was awarded many honours during his lifetime, including knighthood of the Order of the Guelphs, Civil Division (1831), was founded on the ability to understand and comment the work of the French analysts rather than any great originality of his own...Ivory's work, conducted with great industry over a long period, helped to foster in England a new interest in the application of analysis to physical problems."" (DSB VII. p. 37).‎