The Geological History of PlantsD. Appleton & Company, 1892 - 294 pagini |
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... TION OF WORMS . With Observations on their Habits . By CHARLES DARWIN , LL . D. , F. R. S. With Illustrations . $ 1.50 . 38. THE CONCEPTS AND THEORIES OF MODERN PHYSICS . By J. B. STALLO . $ 1.75 . 39. THE BRAIN AND ITS FUNCTIONS . By J ...
... TION OF WORMS . With Observations on their Habits . By CHARLES DARWIN , LL . D. , F. R. S. With Illustrations . $ 1.50 . 38. THE CONCEPTS AND THEORIES OF MODERN PHYSICS . By J. B. STALLO . $ 1.75 . 39. THE BRAIN AND ITS FUNCTIONS . By J ...
Pagina 8
... tion of the Laurentian , rocks are found which indicate that there were already land and water , and that the waters and possibly the land were already tenanted by living beings . The great beds of limestone which exist in this part of ...
... tion of the Laurentian , rocks are found which indicate that there were already land and water , and that the waters and possibly the land were already tenanted by living beings . The great beds of limestone which exist in this part of ...
Pagina 29
... tion of Canada are probably the work of Crustacea . It is probable , however , that some of the later forms referred to these genera are really Algae related to Caulerpa , or even branches of Conifers of the genus Brachyphyllum ...
... tion of Canada are probably the work of Crustacea . It is probable , however , that some of the later forms referred to these genera are really Algae related to Caulerpa , or even branches of Conifers of the genus Brachyphyllum ...
Pagina 53
... tion of Sporangites , and proposes the name Tasmanites punctatus for the Australian form . Here we have the remarkable fact that the waste macrospores , or larger spores of a species of Cryptoga- mous plant , occur dispersed in ...
... tion of Sporangites , and proposes the name Tasmanites punctatus for the Australian form . Here we have the remarkable fact that the waste macrospores , or larger spores of a species of Cryptoga- mous plant , occur dispersed in ...
Pagina 78
... tion till the next chapter . ( Figs . 27 , 28. ) Passing over these for the present , we find that the flower- ing plants are repre- sented in the Erian forests by at least two types of Gym- nosperms , that of Taxineæ or yews , and an ...
... tion till the next chapter . ( Figs . 27 , 28. ) Passing over these for the present , we find that the flower- ing plants are repre- sented in the Erian forests by at least two types of Gym- nosperms , that of Taxineæ or yews , and an ...
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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