The Succession of Life on the Earth: Three LecturesMacmillan and Company, 1877 - 61 páginas |
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The Succession of Life on the Earth: Three Lectures (Classic Reprint) William Crawford Williamson Sin vista previa disponible - 2018 |
The Succession of Life on the Earth: Three Lectures (Classic Reprint) William Crawford Williamson Sin vista previa disponible - 2016 |
Términos y frases comunes
abundant accumulated allied Ammonites amongst ancient Belemnite belonged birds bones boundary line brain called your attention Cambrian Carboniferous Carboniferous age Cephalaspis Chalk age coal coal-measures conclusion creatures Cretaceous Cretaceous age crocodile Crown 8vo cryptogamic cuttle-fishes Cycads deposits Devonian Devonian age disappeared discover doctrine of evolution earth Edition Encrinites Eningen enormous number Eocene Eozoon evidence evolutionist existence fact feet fishes flourished footsteps Foraminifera forests fossil fragment Ganoid genus geological geologist gigantic Goniatites Graptolites Greenland Hipparion horse horsetails huge Illustrations inches known layers lecture limestones living lower mammals Mammoth Manchester merely Miocene modern types molluscan molluscs Nautilus numerous objects oldest Oolitic Oolitic age organic organisation Paleozoic peculiar period plants Pliocene present day probability Professor Huxley remains remarkable represented reptiles sandstone sharks shells Silurian Silurian age similar skeleton species star-fishes strata tail teeth Teleosaurus Tertiary thickness trees Triassic Trilobite tropical true upper vegetation whilst Zealand
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Página 47 - ... late period, as if in preparation for man's advent upon the earth, it should suddenly advance with such amazing rapidity. I contend stoutly that however numerous may be the facts that sustain the doctrine of evolution (and I am prepared to admit that there are many that do so in a remarkable manner) this unexplained outburst of new life, demands the recognition of some factor not hitherto admitted into the calculations of the evolutionist school. Before we finally leave the Miocene age I would...
Página 3 - ... that never reached the ocean ; and even of the few terrestrial things that were entombed in the sea, remembering at how few spots the geologist has opened the bowels of the earth, you will see that many chances exist against the probability of such rare relics being stumbled upon by the fossil-hunter. Let me give you an illustration of what I mean. We have for some time past been dredging the ocean in all directions ; expedition after expedition has gone forth, culminating in that noble and successful...
Página 2 - ... wants, and the organisation of living things. But such changes could not be produced quickly ; our own experience of what has taken place during the historic age shows us that such changes must have been slow. The crocodiles, oxen, cats, ibisses, and various other creatures that were embalmed amongst the mummies of Egypt, were animals such as still live on the earth without having undergone any change ; the species are still identically what they were in the age of the Pharaohs. In like manner,...
Página 27 - Not that it appears here for the first time; later researches have shown that similar animals lived amongst the marshy forests of the Carboniferous age. Not only have magnificent skulls of this creature been found in the coal-beds near Glasgow and other places, but impressions of his footsteps have been found, similar to those belonging to the Triassic period. Owen's name of Labyrinthodon is now generally identified with this strange creature, in which science, art, and commerce, meet very strangely...