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Or thirdly, in consequence of the painful or pleasurable sensation above mentioned, desire and aversion are introduced, and inordinate volition succeeds; which by its own exertions expends so much of the spirit of animation, that the two other sensorial faculties, or irritation and sensation, act so much more feebly; that the paroxysms of fever, or that libration between the extremes of exertion and inactivity of the arterial system, gradually subsides.
Nach., No. 263 ; Pop. There is also a "parallactic" libration, depending on the earth's rotation; and a species of nodding movement the "libration in latitude" is produced by the inclination of the moon's axis to her orbit, and by her changes of position with regard to the terrestrial equator. Leo Brenner, Naturwiss. Wochenschrift, January 13, 1895; Jour. Brit. Astr.
Occasional accumulation of sensorial power in muscles subject to constant stimulus. In animals sleeping in winter. In eggs, seeds, schirrous tumours, tendons, bones. 3. Great exertion introduces pleasure or pain. Inflammation. Libration of the system between torpor and activity. Fever-fits. 4. Desire and aversion introduced. Excess of volition cures fevers. III. Of repeated stimulus. 1.
At least three bright streaks originate on the E. flank of Langrenus, which, diverging widely, traverse the Mare Foecunditatis. Henry Cooper Key drew attention to certain flattenings which he had noted on the W. limb, which are very apparent under favourable conditions of libration.
In this book the author gives a solution of the great problems of the precession of the equinoxes and the libration of the moon, and determines the conditions upon which the stability of Saturn's ring depends.
This change or libration is of four different kinds, viz. the diurnal libration, the libration in longitude, the libration in latitude, and the spheroidal libration. Galileo discovered the first of these kinds of libration, and appears to have had some knowledge of the second; but the third was discovered by Hevelius, and the fourth by Lagrange.
Fifthly, that it is the government, which, attaining to perfect equality, has such a libration in the frame of it, that no man living can show which way any man or men, in or under it, can contract any such interest or power as should be able to disturb the commonwealth with sedition, wherefore an equal commonwealth is that only which is without flaw and contains in it the full perfection of government.
The memoir in which Lagrange has so successfully connected the laws of libration with the principles of gravitation, is no less remarkable for intrinsic excellence than style of execution. After having perused this production, the reader will have no difficulty in admitting that the word elegance may be appropriately applied to mathematical researches.
It is generally admitted that the invisible hemisphere of the moon is, by its constitution, absolutely similar to the visible hemisphere. One-seventh of it is seen in those movements of libration Barbicane spoke of. Now upon the surface seen there were only plains and mountains, amphitheatres and craters, like those on the maps. They could there imagine the same arid and dead nature.
The Poles slowly nod once every many thousand years, there is a libration to the moon; and in all this vast harmonious process of come and go the units of it twirl and spin, and, as they spin, run more gravely in ordered procession round their central star: that star moves also to a beat, and all the stars of heaven move each in times of its own as well, and their movement is one thing altogether.
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