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ALFRED RUSSEL WALLACE animals apparatus appear atomic weights bees bicycle birds body called carbonic acid carried causes century chalk Clidastes coal cobra color comet Cretaceous Crookes tube crust discovery distance double star earth electric ELISHA GRAY ether ether waves existence experiments fact feet fire force fossils gases glass globe Globigerinae hand heat hive horse hundred inch invention inventor kind kite land layer less light liquid air living longitudinal waves Marconi means messages miles an hour mosasaurs motion motor vehicle mountains move nature nitrogen object observed ocean operation oxygen passed phenomena planet possible present produced RAY STANNARD BAKER rays retina rocks seen shoe skeleton solid sound species speed spiders stars substance surface telescope temperature theory thickness tion tube vapor vibrations waves weight wheel whole wings wire
Seite 340 - every species has come into existence coincident both in space and time with a pre-existing closely allied species.
Seite 208 - ... coverings and appendages by putrefaction ; and that, after this had happened, another animal might attach itself to the dead and naked skeleton, might grow to maturity, and might itself die before the calcareous mud had buried the whole. Cases of this kind are admirably described by Sir Charles Lyell. He speaks of the frequency with which geologists find in the chalk a fossilized sea-urchin, to which is attached the lower valve of a Crania. This is a kind of shell-fish, with a shell composed...
Seite 197 - Mediterranean. Thus the chalk is no unimportant element in the masonry of the earth's crust, and it impresses a peculiar stamp, varying with the conditions to which it is exposed, on the scenery of the districts in which it occurs. The undulating downs...
Seite 211 - Cromer, you will see the boulder clay forming a vast mass, which lies upon the chalk, and must consequently have come into existence after it. Huge boulders of chalk are, in fact, included in the clay and have evidently been brought to the position they now occupy, by the same agency as that which has planted blocks of syenite from Norway side by side with them.
Seite 212 - And not only do the remains of stately oaks and well-grown firs testify to the duration of this condition of things, but additional evidence to the same effect is afforded by the abundant remains of elephants, rhinoceroses, hippopotamuses, and other great wild beasts, which it has yielded to the zealous search of such men as the Rev. Mr. Gunn. When you look at such a collection as he has formed, and bethink you that these elephantine bones did veritably carry their owners about, and these great grinders...
Seite 138 - They have likewise discovered two lesser stars, or satellites, which revolve about Mars; whereof the innermost is distant from the centre of the primary planet exactly three of his diameters, and the outermost, five; the former revolves in the space of ten hours, and the latter in twenty-one and a half...
Seite 196 - If a well were to be sunk at our feet in the midst of the city of Norwich, the diggers would very soon find themselves at work in that white substance almost too soft to be called rock, with which we are all familiar as "chalk.
Seite 219 - FIRST-BORN among the Continents, though so much later in culture and civilization than some of more recent birth, America, so far as her physical history is concerned, has been falsely denominated the New World. Hers was the first dry land lifted out of the waters, hers the first shore washed by the ocean that enveloped all the...
Seite 289 - Make a small cross of two light strips of cedar, the arms so long as to reach to the four corners of a large thin silk handkerchief when extended...
Seite 215 - Indians. Crocodiles of modern type appear; bony fishes, many of them very similar to existing species almost supplant the forms of fish which predominate in more ancient seas; and many kinds of living shellfish first become known to us in the chalk.