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To the same conclusion also must he be brought who advocates the origin of different races from different centres. It comes to the same thing, whichever of those doctrines we adopt. Each brings us to the admission of the transitory nature of typical forms, to their transmutations and extinctions.
Mareschal's system, bichromate of potassa piles may be utilized in a large number of cases where a light of but short duration is required until the battery is exhausted, without the tedious maneuvering of a winch and without inconvenience. The jack permits of a large number of lightings and extinctions being effected before it becomes necessary to wind up its clockwork movement.
When, therefore, it is considered how many peerages are in the first and second generation, it will not appear strange that extinctions should frequently take place. There are peerages which descend to females as well as males. But, in such cases, if a peer dies, leaving only daughters, the very fecundity of the marriage is a cause of the extinction of the peerage.
First, That I have often observ'd that Calcin'd Lead Colliquated with fine White Sand or Crystal, reduc'd by ignitions and subsequent extinctions in Water to a subtile Powder, will of it self be brought by a due Decoction to give a cleer Mass Colour'd like a German Amethyst.
Nevertheless, conceding to our mental infirmity the idea of a real existence of visible nature, we may consider it as offering a succession of impermanent forms, and as exhibiting an orderly series of transmutations, innumerable universes in periods of inconceivable time emerging one after another, and creations and extinctions of systems of worlds taking place according to a primordial law.
I take a spray and rain down a slight shower of cold water upon the flock. Not one of my animals puts out its light; at the very most, there is a brief pause in the radiance; and then only in some cases. I send a puff of smoke from my pipe into the cage. This time the pause is more marked. There are even some extinctions, but these do not last long.
The clear, kingly effulgence that had characterized the majority expressed a heath and furze country like their own, which in one direction extended an unlimited number of miles; the rapid flares and extinctions at other points of the compass showed the lightest of fuel straw, beanstalks, and the usual waste from arable land.
For some examples of such extinctions, see The Magic Art and the Evolution of Kings, ii. 261 sqq., 267 sq.; Spirits of the Corn and of the Wild, i. 311, ii. 73 sq.; and above, pp. 124 sq., 132-139. The reasons for extinguishing fires ceremonially appear to vary with the occasion.
That such extinctions, such modifications, have taken place, how copious, how convincing, is the evidence! Here, again, we must observe that, since the disturbing agency was itself following a mathematical law, these its results must be considered as following that law too.
One-and-twenty years ago, in spite of the work commenced by Hutton and continued with rare skill and patience by Lyell, the dominant view of the past history of the earth was catastrophic. Great and sudden physical revolutions, wholesale creations and extinctions of living beings, were the ordinary machinery of the geological epic brought into fashion by the misapplied genius of Cuvier.
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