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Statistics applied to the subject-matter of different sciences are merely a method: but statistics exist also as an independent science, the contents of which represent the demological facts obtained by application of the statistical method. The two branches of demological science, that is, statistics of natality and of mortality, are, both of them, sprung from the soil of England. It was in 1665 that the Royal Society, by publishing the 'Natural and Political Observations,' written by Captain John Graunt three years before, laid the foundation stone of that science which, under the name of Vital Statistics, or Demology (Demography), forms the scientific nucleus of statistical researches.

philosophical transactions of the royal society of london. b

XVIII. An estimate of the degrees of legitimate natality as derived from a table of natality compiled by the author from his observations made at Budapest