Statistical inquiry into the facts of life has long been employed, and in particular Francis Galton, within the Darwinian period, has advocated its employment and developed its methods.
It reported favourably, especially on the use of the measurements for primary classification, but recommended also the adoption in part of a system of "finger prints" as suggested by Francis Galton, and already practised in Bengal.
On the whole there seems little doubt that successful crystalgazing is the exertion of a not uncommon though far from universal faculty, like those of "chromatic audition" - the vivid association of certain sounds with certain colours - and the mental seeing of figures arranged in coloured diagrams (Galton, Inquiry into Human Faculty, pp. 114-154).
As regards scepticism concerning the faculty we may quote what Mr Galton says about the faculty of visualization: "Scientific men as a class have feeble power of visual reproduction..
Galton, Church and State in France, 1300-1907 (London, 1907); E.
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