The Origin and Evolution of Life: On the Theory of Reaction and Interaction of EnergyC. Scribner, 1917 - 322 pagina's |
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The Origin and Evolution of Life: On the Theory of Action, Reaction and ... Henry Fairfield Osborn Volledige weergave - 1917 |
The Origin and Evolution of Life, on the Theory of Action, Reaction and ... Henry Fairfield Osborn Volledige weergave - 1917 |
The Origin and Evolution of Life: On the Theory of Action, Reaction and ... Henry Fairfield Osborn Volledige weergave - 1917 |
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actions and reactions adaptive radiation algæ American Museum amphibians ancestral appear aquatic arboreal armature armored atmosphere author by W. K. bacteria birds body form calcium Cambrian carbon CARBONIFEROUS carnivorous cell changes characters chemical elements chemical messengers chlorophyll chromatin colloids complex compounds continental Darwin deposits Devonian dinosaurs earth energy environment enzymes Eocene eurypterids evolve existing fishes fossil function geologic germ habitat habitat zones heat herbivorous heredity heredity-chromatin hydrogen ichthyosaurs iguanodont inorganic interaction invertebrates Jurassic known lifeless limbs living matter Loeb mammalian mammals marine mosasaurs Museum of Natural Natural History nitrogen North America observed ocean Oligocene organism origin Osborn ostracoderms oxygen pelagic period Permian phase physicochemical plants and animals plesiosaurs present primitive primordial proteins protoplasm Protozoa recent reptiles REPTILIA Sauropoda Schuchert seas sharks Silurian similar skeleton species stage structure substances swift-moving teeth terrestrial theory tion tissues Triassic types Upper Cretaceous velocity vertebrates W. K. Gregory Walcott
Populaire passages
Pagina 12 - Every body continues in its state of rest, or of uniform motion in a right line, unless it is compelled to change that state by forces impressed upon it.
Pagina 12 - Lex I Corpus omne perseverare in statu suo quiescendi vel movendi uniformiter in directum, nisi quatenus illud a viribus impressis cogitur statum suum mutare.
Pagina 13 - To every action there is always opposed an equal reaction: or, the mutual actions of two bodies upon each other are always equal and directed to contrary pans.
Pagina xi - It is quite certain that we cannot become sufficiently acquainted with organized creatures and their hidden potentialities by aid of purely mechanical natural principles, much less can we explain them ; and this is so certain, that we may boldly assert that it is absurd for man even to conceive such an idea, or to hope that a Newton may one day arise able to make the production of a blade of grass comprehensible, according to natural laws ordained by no intention; such an insight we must absolutely...
Pagina x - Thus the long period of evolution, experiment, and reasoning which began with the French natural philosopher, Buffon, one hundred and fifty years ago, ends in 1916 with the general feeling that our search for causes, far from being near completion, has only just begun. "Our present state of opinion is this: we know to some extent how plants and animals and man evolve; we do not know why they evolve.
Pagina 298 - Bull. 3, p. 1-233, 29 pis. 1914, The Upper Cretaceous and Eocene floras of South Carolina and Georgia : US Geol.
Pagina 240 - But the causes and conditions of variation have yet to be thoroughly explored, and the importance of natural selection will not be impaired, even if further enquiries should prove that variability is definite, and is determined in certain directions rather than in others by conditions inherent in that which varies.
Pagina 57 - It will, in short, become possible to introduce into the economy a molecular mechanism which, like a very cunningly- contrived torpedo, shall find its way to some particular group of living elements, and cause an explosion among them, leaving the rest untouched.
Pagina 36 - The amount of calcium carbonate in the oceans cannot be used as a basis for an estimate of their age, since some of it is precipitated upon reaching the salt water, and much of it is used by animals and plants for their skeletons and shells. MOVEMENT OF THE WATER Wave Motion. — Since marine erosion...
Pagina 299 - Vol. 1. 1. The Distribution and Activities of Bacteria in Soils of the Arid Region, by Charles B.