The Geological History of PlantsK. Paul, Trench, 1888 - 290 pagini |
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Pagina 3
... whole sequence of beds . Let us observe here also that , though we can trace these series of deposits over the whole of the surfaces of the continents , yet if the series could be seen in one spot , say in one shaft sunk through the ...
... whole sequence of beds . Let us observe here also that , though we can trace these series of deposits over the whole of the surfaces of the continents , yet if the series could be seen in one spot , say in one shaft sunk through the ...
Pagina 4
... whole geologi with the history of animals and plants assoc ANIMALS . Age of Man and Mammalia . Age of Reptiles . Age of Amphibians and Fishes . Age of Inverte- brates . Palæozoic . Mesozoic . Kainozoic . SYSTEMS OF FORMATIONS . Modern ...
... whole geologi with the history of animals and plants assoc ANIMALS . Age of Man and Mammalia . Age of Reptiles . Age of Amphibians and Fishes . Age of Inverte- brates . Palæozoic . Mesozoic . Kainozoic . SYSTEMS OF FORMATIONS . Modern ...
Pagina 11
... whole ; and , making every allowance for the poorer portions , this band cannot contain in all a less vertical thickness of pure graphite than from twenty to thirty feet . In the adjoining township of Lochaber Sir W. E. Logan notices a ...
... whole ; and , making every allowance for the poorer portions , this band cannot contain in all a less vertical thickness of pure graphite than from twenty to thirty feet . In the adjoining township of Lochaber Sir W. E. Logan notices a ...
Pagina 17
... whole world must have resembled a damp , warm greenhouse , and plants loving such an at- mosphere could have grown luxuriantly . In these cir- cumstances the lower forms of aquatic vegetation and ; those that love damp , warm air and ...
... whole world must have resembled a damp , warm greenhouse , and plants loving such an at- mosphere could have grown luxuriantly . In these cir- cumstances the lower forms of aquatic vegetation and ; those that love damp , warm air and ...
Pagina 38
... whole , are casts of worm - bur- rows , with trails radiating from them . Though I have confined myself in this notice to plants , or supposed plants , of the Lower Palæozoic , it may be well to mention the remarkable Cauda - Galli ...
... whole , are casts of worm - bur- rows , with trails radiating from them . Though I have confined myself in this notice to plants , or supposed plants , of the Lower Palæozoic , it may be well to mention the remarkable Cauda - Galli ...
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Termeni și expresii frecvente
acrogens aërial roots Algæ allied America appear arctic areoles bark beds belong bituminous branches Brongniart bundles Calamites Canada Carboniferous Caulopteris cells cellular character climate coal coal-formation conifers Cordaites cycads cylinder Dadoxylon Dawson Demy 8vo described Devonian diameter Eocene Erian Europe exogenous Fcap ferns flora formation forms fossil plants fronds fructification fruit Gaspé genera genus Geological Society graphite Greenland hemisphere Illustrations Journal Laramie Laurentian leaf-bases leaf-scars leaves Lepidodendron Lepidophloios Lesquereux limestone Lower Carboniferous Lycopods macrospores medullary rays Mesozoic Middle modern Nova Scotia occur outer Paleozoic period Permian petioles pines pinnate pinnules pith present probably Prof Psilophyton referred resemble Rhizocarps ribbed rocks sandstones scalariform scars Second Edition Sequoia shales Sigillaria Silurian similar Small crown 8vo species specimens Sphenophyllum Sporangites spore-cases spores sporocarps stems Sternbergia structure Tertiary thick Third Edition tion tissue tree-ferns trees trunks Upper Cretaceous vascular vegetable vols Williamson wood woody
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