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A832
Beagle Library:
Turner, Sharon. 1832. The sacred history of the world, as displayed in the Creation and subsequent events to the Deluge, attempted to be philosophically considered in a series of letters to a son. Volume 1. 2nd ed. London: Longman, Rees, Orme, Brown, Green and Longman.
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order for their production was expressed. All the previous preparations have been made, they would emerge simultaneously to the command. One large district, or island, with mountain, hill, marsh, heath and valley, would have been quite sufficient for the primeval evolution of a sufficient number of every species. In this space, with those differences in the nature and elevation of the surface, all the known classes of vegetation might germinate and grow. Such region appears now in one single
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A832
Beagle Library:
Turner, Sharon. 1832. The sacred history of the world, as displayed in the Creation and subsequent events to the Deluge, attempted to be philosophically considered in a series of letters to a son. Volume 1. 2nd ed. London: Longman, Rees, Orme, Brown, Green and Longman.
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the Wolf have an exquisite sense of smell.19 The Cat, and some others, can see in the dark. The Lynx is acute both in sight and smell.20 The Racoon is peculiarly sensitive in both smell and touch.21 Others have a quickness of hearing superior to ourselves;22 and some appear to be impressible by musical sounds.23 In the evolution of the Animal embryo, the formation of its nervous system appears to precede its circulatory functions and fluid.24 And some 19 T. Linn us, 43. 20 Ib. 51. No beast can
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A505.3
Beagle Library:
Lyell, Charles. 1833. Principles of geology, being an attempt to explain the former changes of the earth's surface, by reference to causes now in operation. 3 vols. London: John Murray. vol. 3.
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the tufaceous alluvium of the Rhine volcanos called trass, which has covered large areas, and choked up some valleys now partially re-excavated. This trass is, like the loess, unstratified. The base is composed almost entirely of pumice, in which are included fragments of basalt and other lavas, pieces of burnt shale, slate, and sandstone, and numerous trunks and branches of trees. If an eruption, attended by a copious evolution of gases, should now happen in one of the lake basins, we might
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A747
Beagle Library:
British Association for the Advancement of Science. 1833. Report of the first and second meetings, at York in 1831 and at Oxford in 1832, including its proceedings, recommendations, and transactions. London: John Murray.
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.) For information on various points connected with the subject, and on the theories of the evolution of light and heat, the following references may be useful. Wedgewood, Phil. Trans. 1792, p. 28, thinks that light from attrition is produced by a heat of from 400 to 600 Fahr. Diz on Heat as the Cause of Shining, Journ. de Phys. xlix. 177. Gilbert, Ann. iv. 410. Fordyce on Light from Inflammation, Phil. Trans. 1776, p. 504. Morgan, Phil. Trans. 1785, p. 190. M. Hermstaedt, Nicholson's 4 to Journal
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A747
Beagle Library:
British Association for the Advancement of Science. 1833. Report of the first and second meetings, at York in 1831 and at Oxford in 1832, including its proceedings, recommendations, and transactions. London: John Murray.
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. In 1828 this difficulty was overcome by W hler, who, by preparing anhydrous chlorides and heating them with potassium, succeeded in reducing alumina, glucina, and yttria. By the same process in the following year Berzelius reduced thorina, and Bussy magnesia. The metals obtained from these oxides are much more permanent than the bases of the alkalies; they may be boiled in water without oxidation, burn when heated in the open air, and are dissolved by acids with evolution of hydrogen gas
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A747
Beagle Library:
British Association for the Advancement of Science. 1833. Report of the first and second meetings, at York in 1831 and at Oxford in 1832, including its proceedings, recommendations, and transactions. London: John Murray.
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is shown to be the function of a certain small solid assigned by the author. He likewise gave an outline of a manuscript Memoir on Numeral Evolution, by DR. ALLMAN, Professor of Botany in the University of Dublin, which related principally to a new method for the arithmetical calculation of logarithms. PROFESSOR HAMILTON also stated a general Theorem of his own respecting differences and differentials of Functions of Zero, which he had presented to the Royal Irish Academy, and to which he had
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A747
Beagle Library:
British Association for the Advancement of Science. 1833. Report of the first and second meetings, at York in 1831 and at Oxford in 1832, including its proceedings, recommendations, and transactions. London: John Murray.
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his memoir on numeral evolution, 545. Apjohn (Dr. J.), formula by which a proper correction for vapour may be applied to the specific gravities obtained by experiments on gases saturated with moisture, 570. Baxter (W.) on the spiral vessels observed in the mucous matter which envelops the seeds of Salvia verbenaca, 595. Bevan (B.) on the compilation of a general table of altitudes of places in Great Britain and Ireland, 576. Boase (Dr.), remarks on mineral veins, 579. Brewster (Sir D.) on the
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A747
Beagle Library:
British Association for the Advancement of Science. 1833. Report of the first and second meetings, at York in 1831 and at Oxford in 1832, including its proceedings, recommendations, and transactions. London: John Murray.
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creasing intensities more of it is enabled to pass in the way of direct radiation. In order to establish this theory, it would be necessary to show that whatever may be the particular law of relation to the surfaces of bodies by which the action of the igneous fluid is determined at any stage of its evolution, the portion transmitted by a screen should act upon any two given surfaces in precisely the same ratio as the part intercepted, or as the whole. Such a ratio will obviously differ at
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A747
Beagle Library:
British Association for the Advancement of Science. 1833. Report of the first and second meetings, at York in 1831 and at Oxford in 1832, including its proceedings, recommendations, and transactions. London: John Murray.
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less disturbed, underwent the natural change, and grew to the length of an inch. The period of development in such circumstances varies with the temperature of the apartment, and may thus be produced ten days or a fortnight before their natural evolution in the river; but exposure to the sun kills them infallibly. Having cast the slough, they will live about ten days in water unchanged, apparently thriving, growing, and darkening in colour, (if exposed to the light,) but they have not been
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A747
Beagle Library:
British Association for the Advancement of Science. 1833. Report of the first and second meetings, at York in 1831 and at Oxford in 1832, including its proceedings, recommendations, and transactions. London: John Murray.
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within itself the miniature rudiments in detail of the entire foetal fabric, and that the embryo growth is a simultaneous evolution of all the organs which belong to the future foetus, he follows Professors Wolf, Baer, c., in describing the gradual changes in the germinal membrane, and the successive growth of all the organs, in the ovum of the fowl; compares them with what is known of the parallel development of the foetus in viviparous animals; and insists on the probability that in both
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A922
Beagle Library:
Somerville, Mary. 1834. On the connexion of the physical sciences. London: John Murray.
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enough for the evolution of flame. Though it is a general law that all bodies expand by heat and contract by cold, yet the absolute change depends upon the nature of the substance. Gases expand more than liquids, and liquids more than solids. The expansion of air is more than eight times that of water, and the increase in the bulk of water is at least forty-five times greater than that of iron. The expansion of solids and liquids increases uniformly with the temperature, between certain limits
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A922
Beagle Library:
Somerville, Mary. 1834. On the connexion of the physical sciences. London: John Murray.
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exactly equal to the repulsive force at equal distances, and when not opposed, they coalesce with great rapidity and violence, producing the electric flash, explosion, and shock; then equilibrium is restored, and the electricity remains latent till again called forth by a new exciting cause. One kind of electricity cannot be evolved without the evolution of an equal quantity of the opposite kind: thus, when a glass rod is rubbed with a piece of silk, as much positive electricity is elicited in the
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A922
Beagle Library:
Somerville, Mary. 1834. On the connexion of the physical sciences. London: John Murray.
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the night. The intensity increases for two or three hours from the time of sunrise, then decreases towards the middle of the day, and again augments as the sun declines, till about the time of sunset, after which it diminishes, and continues feeble during the night. Atmospheric electricity arises from an evolution of the electric fluid during the evaporation that is so abundant at the surface of the earth; and clouds probably owe their existence, or at least their form, to it, for they consist
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A922
Beagle Library:
Somerville, Mary. 1834. On the connexion of the physical sciences. London: John Murray.
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development of heat. Instead of a momentary evolution, which seems to arise from a forcible compression of the particles of matter during the passage of the common electric fluid, the circulation of the voltaic electricity is accompanied by a continued development of heat, lasting as long as the circuit is complete, without producing either light or sound; and this [page] 30
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A922
Beagle Library:
Somerville, Mary. 1834. On the connexion of the physical sciences. London: John Murray.
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however, somewhat different, for, although the evolution of the electricity is continued for a sensible time, it is interrupted, being communicated by a succession of discharges. SECTION XXX. IN order to explain the other methods of exciting electricity, and the recent discoveries that have been made in that science, it is necessary to be acquainted with the general theory of magnetism, and also with the magnetism of the earth, the director of the mariner's compass, and his guide through the
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A922
Beagle Library:
Somerville, Mary. 1834. On the connexion of the physical sciences. London: John Murray.
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juxtaposition as by contact; the nature of the poles depends upon the direction of the current, and the intensity is proportional to the quantity of electricity. It appears from what precedes, that the principle and characteristic phenomena of the electromagnetic science are, the evolution of a tangential and rotatory force exerted between a conducting [page] 33
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A922
Beagle Library:
Somerville, Mary. 1834. On the connexion of the physical sciences. London: John Murray.
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varies inversely as the square of the distance. The development of electric currents, as well by magnetic as electric induction, the similarity in their mode of action in a great variety of circumstances, but above all the production of the spark from a magnet, the ignition of metallic wires, and chemical decomposition, show that magnetism can no longer be regarded as a separate, independent principle. That light is visible heat seems highly probable; and although the evolution of light and heat
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A900
Beagle Library:
De La Beche, Henry Thomas. 1834. Researches in theoretical geology. London: Charles Knight
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carburetted hydrogen, in the vesicles of coal, no small volume must occur in this state. In this account we must not neglect the hydrogen evolved from volcanos, either in aqueous vapor, or combined with other substances in a gaseous form. It would appear, however, that the evolution of hydrogen, either from volcanos, or from fissures in the rock, in the shape of inflammable gases, produces little effect on the atmosphere, so that either the general amount must be inconsiderable, or it unites with the
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A894.2
Beagle Library:
Webster, William Henry Bayley. 1834. Narrative of a voyage to the southern Atlantic Ocean, in the years 1828, 29, 30, performed in H.M. Sloop Chanticleer. 2 vols. London: Richard Bentley. Volume 2.
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abundant at St. Helena, in veins among the lofty ridges of basaltic rock; but it may in these cases have a different origin, and be a true igneous formation, from the evolution of sulphureous acid coming in contact with the earthy base; and thus form anhydrous gypsum; for we had sulphur and alum at South Shetland with the gypsum. Here we have demonstration of its marine origin, forming extensive beds, and crystallizing in a variety of ways; we have likewise evidence of the contemporaneous [page
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A900
Beagle Library:
De La Beche, Henry Thomas. 1834. Researches in theoretical geology. London: Charles Knight
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Now the volcanic eruptions of the moon must be very different from those on the surface of the earth, if they be not accompanied by the evolution of gas. If gases be evolved in lunar volcanic eruptions, gravity necessarily brings them down on the moon's surface, and they can only disappear from thence, either by combining with liquid or solid matter, by the influence of intense cold, or by the effect of considerable pressure. Pressure on the moon's surface can only arise from the attraction of
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