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and dust-storms



unobscured — tho black and white — views, for southern and northern hemispheres, here.
transparent storm card, obscured (northern hemisphere, from back),
ex P(aul) F(rederick) H. Baddeley, Whirlwinds and Dust-Storms of India.
subtitled “An investigation into the law of wind and revolving storms at sea. With an Addendum containing practical hints on Sanitary Measures required for the European Soldier in India. Illustrated by numerous Diagrams and Sketches from Nature and a Wind Card for the use of Sailors.” London and Cologne, 1860.

volume commences with this epigram —
Induction is a process of thought by which we rise from particular facts to general truths relating to whole classes of objects or events, and from these again to still higher and more comprehensive generalisations, when two or more classes are compared and found to resemble each other in certain respects — a process in which we are guided in every instance by the perception of analogy between the cases compared, and in which we must confine our conclusion strictly within the limits to which the analogy is known to extend. The conclusion may go far beyond the particular facts which have been actually observed, but it cannot go beyond their known relations and ascertained analogies; if it transcend those, it is no longer an inductive inference, but a fanciful and groundless imagination.
— The North British Review. Aug. Numb. 1859

Cur spirent venti?

14 January 2013

ascertained analogies; particular facts; known relations; induction; mereology; storms; P. F. Baddeley