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The ancestors of Terebratulina caput serpentis may have been present at a battle of Ichthyosauria in that part of the sea which, when the chalk was forming, flowed over the site of Hastings.
Approximate periods were fixed for many of the revolving suns for Castor 342 years; for Gamma Leonis, 1200, Delta Serpentis, 375, Eta Bootis, 1681 years; Eta Lyræ was noted as a "double-double-star," a change of relative situation having been detected in each of the two pairs composing the group; and the occultation was described of one star by another in the course of their mutual revolutions, as exemplified in 1795 by the rapidly circulating system of Zeta Herculis.
The following simile, taken from Cicero's translation of Aratus, and Voltaire's version of it, are greatly admired: Sic Jovis altisoni subito pennata satelles, Arboris è trunco, serpentis saucia morsu; Ipsa feris subigit transfigens unguibus anguem Semianimum, et variâ graviter cervice micantem; Quem se intorquentem laniens rostroque craentans, Abjicit efflantem, et laceratum effundit in undas, Seque obitu a solis nitidos convertit ad ortus.
He gave the approximate period of revolution of some of these: Castor, 342 years; delta Serpentis, 375 years; gamma Leonis, 1,200 years; epsilon Bootis, 1,681 years. Twenty years later Sir John Herschel and Sir James South, after re-examination of these stars, confirmed and extended the results, one pair of Coronae having in the interval completed more than a whole revolution.
The ancestors of Terebratulina caput serpentis may have been present at a battle of Ichthyosauria in that part of the sea which, when the chalk was forming, flowed over the site of Hastings.
The ancestors of Terebratulina caput serpentis may have been present at a battle of Ichthyosauria in that part of the sea which, when the chalk was forming, flowed over the site of Hastings.
Obliquusque caput vanas serpentis in auras Effuse toto comprendit guttura morsu Letiferam citra saniem; tunc irrita pestis Exprimitur, faucesque fluunt pereunte veneno." Pharsalia, lib. iv. v. 729. The mystery of the mongoos and its antidote has been referred to the supposition that there may be some peculiarity in its organisation which renders it proof against the poison of the serpent.
It brightened rapidly, until on May 2d it was of magnitude three and a half. Then it began to fade, but very slowly, and it has never entirely disappeared. It is now of the twelfth or thirteenth magnitude. In passing we may glance with a low power at nu Serpentis, a wide double, magnitudes four and nine, distance 50", p. 31°, colors contrasted but uncertain.
The ancestors of Terebratulina caput serpentis may have been present at a battle of Ichthyosauria in that part of the sea which, when the chalk was forming, flowed over the site of Hastings.
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