Page:The gases of the atmosphere.djvu/12

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"Modern discoveries have not been made by large collections of facts, with subsequent discussion, separation, and resulting deduction of a truth thus rendered perceptible. A few facts have suggested an hypothesis, which means a supposition, proper to explain them. The necessary results of this supposition are worked out, and then, and not till then, other facts are examined to see if their ulterior results are found in Nature."—DE MORGAN, A Budget of Paradoxes, ed. 1872, p. 55.

"Natura nihil agit frustra is the only indisputed Axiome in Philosophy. There are no Grotesques in Nature; not anything framed to fill up empty Cantons and unnecessary spaces."—Sir Thomas Browne's Religio Medici.


First Edition, 1896.

Second Edition, 1900.

Third Edition, 1905.

Fourth Edition, 1915.