The Dispersal of Shells: An Inquiry Into the Means of Dispersal Possessed by Fresh-water and Land MolluscaK. Paul, Trench, Trübner & Company, Limited, 1893 - 291 pagini |
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Pagina 3
... present inquiry ; it should certainly be taken into account , however , whenever the occurrence at distant places of allied fresh - water forms having near relatives in the sea is considered . Fresh - water shells , it seems , if left ...
... present inquiry ; it should certainly be taken into account , however , whenever the occurrence at distant places of allied fresh - water forms having near relatives in the sea is considered . Fresh - water shells , it seems , if left ...
Pagina 10
... present Limnoa peregra , among higher organisms seemingly the only inhabitant , exists in countless numbers , almost covering the bottom . There are no water - weeds . Many ponds of this kind , 1 Specimens were exhibited at the ...
... present Limnoa peregra , among higher organisms seemingly the only inhabitant , exists in countless numbers , almost covering the bottom . There are no water - weeds . Many ponds of this kind , 1 Specimens were exhibited at the ...
Pagina 13
... present case . Ivy - leaved duckweed ( Lemna trisulca ) , water - thyme ( Elodea canadensis ) , frog - bit ( Hydrocharis morsus - rana ) , and a Potamogeton are the principal water - weeds , and there are none of kinds likely to have ...
... present case . Ivy - leaved duckweed ( Lemna trisulca ) , water - thyme ( Elodea canadensis ) , frog - bit ( Hydrocharis morsus - rana ) , and a Potamogeton are the principal water - weeds , and there are none of kinds likely to have ...
Pagina 21
... present kind ( reservoirs , artificially - filled lakes , tanks , troughs , & c . ) are in many cases carried in with the supply - water , but it would frequently be found difficult , in individual cases , to ascertain whether a ...
... present kind ( reservoirs , artificially - filled lakes , tanks , troughs , & c . ) are in many cases carried in with the supply - water , but it would frequently be found difficult , in individual cases , to ascertain whether a ...
Pagina 30
... present distribution of land and water . " 2 Much diffusion , of course , as Darwin admitted , must be attributed to changes in the level of the land , " within the recent period , causing rivers to flow into each other . " 3 Streams ...
... present distribution of land and water . " 2 Much diffusion , of course , as Darwin admitted , must be attributed to changes in the level of the land , " within the recent period , causing rivers to flow into each other . " 3 Streams ...
Alte ediții - Afișează-le pe toate
The Dispersal of Shells: An Inquiry Into the Means of Dispersal Possessed by ... Harry Wallis Kew Vizualizare completă - 1893 |
The Dispersal of Shells: An Inquiry Into the Means of Dispersal Possessed by ... Harry Wallis Kew Vizualizare completă - 1893 |
The Dispersal of Shells: An Inquiry Into the Means of Dispersal Possessed by ... Harry Wallis Kew Vizualizare completă - 1893 |
Termeni și expresii frecvente
8vo Parchment Library A. E. WAITE alive animals aquatic attached Binney birds bivalves British Conchology Bulimus carried Cheap Edition clinging colony Conch Conchology creatures Crown 8vo Darwin distances distribution Dreissena polymorpha eggs Elzevir 8vo Parchment English epiphragm F. W. NEWMAN fauna Fcap feet Fifth Edition floating Fourth Edition fresh-water shells Frontispiece garden Grammar Helix Hist Illustrations India introduced islands J. G. Jeffreys Jeffreys Journ kinds Land and Fresh-water land-shells large numbers larvæ Limnæa peregra living Lyell means of dispersal miles molluscs mussel Naturalist numbers observed occasionally occurred Origin Parchment or cloth Philosophical Library Pisidia Planorbis Planorbis carinatus plants pond Portrait Post 8vo probably Professor remarked rivers Sanskrit Science Gossip Second Edition seems seen slugs Small 8vo snails species specimens Sphærium corneum Standen terrestrial Testacella Third Edition tion toes Translated transportal trees Trübner's Oriental Series Vellum vols water-beetles Zoologist
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