Published online by Cambridge University Press: 18 August 2016
page 173 note * I use my central-difference notation, in which, if A is the interval between successive values of x,
The notation has been explained by Dr. J. Buchanan in J.I.A., vol. xlii, p. 369.
page 175 note * “Reduction of Errors by means of negligible differences”, Fifth International Congress of Mathematicians, Cambridge, 1912, ii, 348–384 Google ScholarPubMed; “Fitting of Polynomial by method of least squares,” Proceedings of the London Mathematical Society, 2nd series, xiii, 97–108; and a continuation of the latter, communicated to the London Mathematical Society in February 1914.
page 178 note * Seventy-fourth Report (1911) of the Registrar-General: Cd.6578(1913), p. xxxiv.
page 179 note * W. P. Elderton, Frequency-curves and Correlation (1906), p. 19.