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
... sometimes have been brought about by the con- vergence of formerly distinct types , ' and this , of course , cuts the Gordian knot much in the same way as did a formerly prevalent belief in multiple centres of special creation . Fresh ...
... sometimes have been brought about by the con- vergence of formerly distinct types , ' and this , of course , cuts the Gordian knot much in the same way as did a formerly prevalent belief in multiple centres of special creation . Fresh ...
Pagina 6
... sometimes , with the smaller Planorbes ( generally spirorbis and vortex ) , and Physa fontinalis . The presence of bivalves , he adds , " is quite exceptional ; the smaller Pisidia , especially P. pusillum , occasionally occur , and I ...
... sometimes , with the smaller Planorbes ( generally spirorbis and vortex ) , and Physa fontinalis . The presence of bivalves , he adds , " is quite exceptional ; the smaller Pisidia , especially P. pusillum , occasionally occur , and I ...
Pagina 7
... sometimes by a lining of concrete , such “ dew- ponds " retain a store of water , except during droughts of exceptional duration , derived from " the rain , dew , and condensation of the mists which often hang on the tops of the hills ...
... sometimes by a lining of concrete , such “ dew- ponds " retain a store of water , except during droughts of exceptional duration , derived from " the rain , dew , and condensation of the mists which often hang on the tops of the hills ...
Pagina 11
... sometimes containing a little water received from the under - drains , open upon the pond ; but Mr. Mason , in whose knowledge of the locality I have the utmost confidence , expresses the opinion that it is in the highest degree ...
... sometimes containing a little water received from the under - drains , open upon the pond ; but Mr. Mason , in whose knowledge of the locality I have the utmost confidence , expresses the opinion that it is in the highest degree ...
Pagina 27
... sometimes been raised on the ground that the creatures would probably be unable to withstand the exposure to which they would be subjected , but , as is pretty generally known , many kinds , at least , are able to live for a time out of ...
... sometimes been raised on the ground that the creatures would probably be unable to withstand the exposure to which they would be subjected , but , as is pretty generally known , many kinds , at least , are able to live for a time out of ...
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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