The few facts definitely ascertainable are collected by G.
Where Wace follows no ascertainable source he must be used with caution.
It is comparatively unimportant to the determinist whether the cause to which he attributes conduct be the self, or the will, or character, or the strongest motive, provided that each of these causes be regarded as definitely ascertainable and that its effects in sufficiently known circumstances be calculable.
By prearrangement, no doubt, uniformity may be obtained in regard to most of the main statistical facts ascertainable at a census, at all events in the more advanced units of the empire, and proposals to this effect were made by the registrar-general of England and Wales in his report upon the figures for 1901.
Further, the effects that he estimates are all of a definite, palpable, empirically ascertainable quality; they are such pleasures and pains as most men feel and all can observe, so that all his political or moral inferences lie open at every point to the test of practical experience.
Hegel offers a supposed proof that Time and Space, Matter, Nature, are ascertainable and definable 2 This is Kant's positive refutation of Hume's scepticism.
That is to say, ascertained or ascertainable effects were made the starting-point instead of the goal of research.