The Edinburgh New Philosophical Journal, Band 56A. and C. Black, 1854 |
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animals appears Arago Atlantic average birds body bones Cape cave cell character China-stone climate coast cobalt cohesion cold containing Crustacea crystals degrees Deodar depth districts dry fog earth east equator existence fact Fallopian tube favour fecundated feet felspar flesh-formers fluid formation genera geological germinal spot germinal vesicle gneiss Graafian follicle Gulf Gulf Stream heat height hygrometer inches iron islands isocrymes Keber labour land language latitude latter less limestone lodes longitude Mammalia mammiferous ovum mass membrane miles minerals month mountains nature nearly Norway observations occur ocean ovary ovisac ovum Pacific period polar present probably Professor pyrites quartz rain regions remarkable river rocks sea-temperature seen shells shew shewn Silurian snow line Society species spermatozoon stream Strickland subtorrid surface Temperate tion Torrid trilobites vapour varieties vesicle wind yelk Zealand zona pellucida zone
Beliebte Passagen
Seite 349 - Softer than the softest down, more impalpable than the finest gossamer-- it leaves the cobweb undisturbed, and scarcely stirs the lightest flower that feeds on the dew it supplies; yet it bears the fleets of nations on its wings around the world, and crushes the most refractory substances with its weight.
Seite 106 - On the Anatomy and Physiology of Cordylophora, a contribution to our knowledge of the Tubularian Zoophytes." By George James Allman, MD, MRIA, Professor of Botany in the University of Dublin, &c.
Seite 176 - Despretz asks himself, Have I obtained crystals of carbon which I can separate and weigh, in which I can determine the index of refraction and the angle of polarization without doubt ? No. I have simply produced by the electric arc, and by weak voltaic currents, carbon crystallized in black octohedrons, in colourless and translucent octohedrons, in plates also colourless and translucent, which possess the hardness of the powder of the diamond, and which disappear in combustion without any sensible...
Seite 48 - That the expelled and lost ovisac in the mammalia therefore corresponds to the shell-membrane in the Bird. 4. That after the formation of the ovum the albuminous contents of the ovisac in the mammalia correspond to the albumen in the Bird's egg.
Seite 349 - It warms and cools by turns the earth and the living creatures that inhabit it. It draws up vapours from the sea and land, retains them dissolved in itself, or suspended in cisterns of clouds, and throws them down again as rain or dew when they are required. It bends the rays of the sun from their path, to give us the twilight of evening and of dawn ; it disperses and refracts their various tints to beautify the approach and the retreat of the orb of day. But for the atmosphere, sunshine would burst...
Seite 377 - ... up the stream. On these were laid planks, and the planks covered with dirt. The Astacus proceeding up stream, would burrow under the planks where they rested on the bottom of the stream, removing bushels of dirt and gravel in the course of a night.
Seite 257 - The present report, comprising returns from a much larger population, shows that 41.27 per cent, of the deaths were those of children under 5 years of age ; an increase of nearly 7 per cent. More than two-fifths of the children born in the State, die under five years. Less than fifty-nine out of every one hundred children born alive, reach the fifth year of existence.
Seite 349 - It is only the girdling encircling air," says another philosopher, " that flows above and around all, that makes the whole world kin. The carbonic acid with which to-day our breathing fills the air, to-morrow seeks its way round the world. The date-trees that grow round the falls of the Nile will drink it in by their leaves; the cedars of Lebanon will take of it to add to their stature ; the cocoa-nuts of Tahiti will grow rapidly upon it, and the palms and bananas of Japan will change it into flowers....
Seite 76 - The doctrine of local limitations meets with so few apparent exceptions that we admit it as an axiom in zoology that species strongly resembling each other, derived from widely diverse localities, especially if a continent intervenes, and if no known or plausible means of communication can be assigned, should be assumed as different until their identity can be proved (vide EE Moll. Intr. p. xi). Much study of living specimens must be made before the apparent exceptions can be brought under the rule.
Seite 350 - Tahiti will grow rapidly upon it, and the palms and bananas of Japan will change it into flowers. The oxygen we are breathing was distilled for us some short time ago by the magnolias of the Susquehanna, and the great trees that skirt the Orinoco and the Amazon — the giant rhododendrons of the Himalayas contributed to it, and the roses and myrtles of Cashmere, the cinnamon-tree of Ceylon, and the forest older than the flood, buried deep in the heart of Africa, far behind the Mountains of the Moon.