A comparison of the solar theories of Newcomb and LeVerrier: with conversion tables for the nineteenth century - Williams, Kenneth P. (Kenneth Powers), 1887-1958 (Bloomington : Indiana University, 1930)
Keywords: Newcomb, Simon, -- 1835-1909; Le Verrier, U.-J. -- 1811-1877; Perturbation (Astronomy); Astronomy ??x History -- 19th century; Sun -- Tables