Asks for JH's comments on YV's specific double star observations. YV presents the mathematical method he uses to calculate double star orbits, which he had presented to the Paris Académie in 1847, but it was not published.
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Asks for JH's comments on YV's specific double star observations. YV presents the mathematical method he uses to calculate double star orbits, which he had presented to the Paris Académie in 1847, but it was not published.
Is sending a communication to JH for insertion in the R.A.S.M.N. Seems to be some problem with understanding YV's calculations of the orbits of double stars, so YV explains his method.
Thanks JH for his interest in YV's work on double stars. YV sends a copy of a note on double stars published in the Académie des Sciences for consideration by the R.A.S. Raises a problem of agreement between Newtonian theory and observational data. YV feels astronomical studies in France are slowing down.
Appears to be presenting YV's calculations for the orbits of double stars. [Much of this letter is illegible.]
Is sending a mathematical work on the stability of a moving locomotive, and hopes it will interest JH. YV would like it presented to the R.S.L. Refers to YV's work on double stars.
Thanks for JH's 'Catalogue of Nebulae.' Comments on the problems of accuracy in YV's meridian instrument due to fluctuating temperatures and other problems. Also refers to geodetic and trigonometric considerations.