The Geological History of PlantsD. Appleton & Company, 1892 - 294 pagini |
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Pagina
... Changes from Day to Day . With Diagrams . By Hon . RALPH ABERCROMBY . $ 1.75 . 59. ANIMAL MAGNETISM . By ALFRED BINET and CHARLES FÉRÉ , Assistant Physician at the Salpêtrière . $ 1.50 . 60. INTERNATIONAL LAW , with Materials for a Code ...
... Changes from Day to Day . With Diagrams . By Hon . RALPH ABERCROMBY . $ 1.75 . 59. ANIMAL MAGNETISM . By ALFRED BINET and CHARLES FÉRÉ , Assistant Physician at the Salpêtrière . $ 1.50 . 60. INTERNATIONAL LAW , with Materials for a Code ...
Pagina 3
... changes indicated by the beds themselves . The facts as to the sequence we obtain from the study of ex- posures in cliffs , cuttings , quarries , and mines ; and by correlating these local sections in a great number of places , we ...
... changes indicated by the beds themselves . The facts as to the sequence we obtain from the study of ex- posures in cliffs , cuttings , quarries , and mines ; and by correlating these local sections in a great number of places , we ...
Pagina 5
... changes in the astronomical relations and period of the earth , and the form of its orbit . We know by the evidence of * * Croll , " Climate and Time . " fossil plants that changes of this kind have occurred so GEOLOGICAL CHRONOLOGY . 5.
... changes in the astronomical relations and period of the earth , and the form of its orbit . We know by the evidence of * * Croll , " Climate and Time . " fossil plants that changes of this kind have occurred so GEOLOGICAL CHRONOLOGY . 5.
Pagina 6
Sir John William Dawson. fossil plants that changes of this kind have occurred so great as , on the one hand , to permit the plants of warm temperate regions to exist within the Arctic Circle ; and , on the other , to drive these plants ...
Sir John William Dawson. fossil plants that changes of this kind have occurred so great as , on the one hand , to permit the plants of warm temperate regions to exist within the Arctic Circle ; and , on the other , to drive these plants ...
Pagina 24
... change the name to Nematophycus , or " thread - sea - weed " ; but the resem- blance is by no means clear , and it would be quite as rea- sonable to compare the tissue to that of some Fungi or Li- chens , or even to suppose that a plant ...
... change the name to Nematophycus , or " thread - sea - weed " ; but the resem- blance is by no means clear , and it would be quite as rea- sonable to compare the tissue to that of some Fungi or Li- chens , or even to suppose that a plant ...
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Termeni și expresii frecvente
abundant Acrogens aërial roots Algæ allied America animal appear arctic areoles bark beds belong bituminous branches Brongniart Calamites Canada carbon Carboniferous Caulopteris cellular character clay climate coal coal-formation conifers Cordaites cycads Dadoxylon Dawson deposits described Devonian diameter dicotyledonous Eocene Europe exogenous fact ferns flora formation forms fossil fossil plants fronds fructification fruit Gaspé genera genus Geological Society graphite Greenland gymnospermous Heer hemisphere Journal known land land-plants Laramie Laurentian leaf-bases leaf-scars leaves Lepidodendron Lepidophloios Lesquereux limestone Lower Carboniferous Lycopods macrospores matter medullary rays Mesozoic Miocene modern Nematophyton northern Nova Scotia occur outer Palæozoic period Permian pines pinnules pith present preserved probably Prof Psilophyton referred remarkable resemble Rhizocarps rocks sandstones scalariform scars Sequoia shales Sigillaria Silurian similar species specimens Sphenophyllum Sporangites spore-cases spores sporocarps stems Sternbergia structure surface Tertiary thick tion tissue tree-ferns trees trunks types Upper Cretaceous vascular vegetable wood woody