Nature, Volume 93Sir Norman Lockyer Macmillan Journals Limited, 1914 |
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Página 23
... species and subspecies was described . February 19. - Prof E. B. Poulton , president , in the chair . - Dr . J. P. Lotsy : The origin of species by crossing . In all questions of evolution facts are gathered from individuals , because ...
... species and subspecies was described . February 19. - Prof E. B. Poulton , president , in the chair . - Dr . J. P. Lotsy : The origin of species by crossing . In all questions of evolution facts are gathered from individuals , because ...
Página 264
... species , representing twenty - two genera and five families . The species in the larger genera , Uromyces ( 38 species ) and Puccinia ( 137 species ) are arranged in the order of the families and genera of their host - plants . An ...
... species , representing twenty - two genera and five families . The species in the larger genera , Uromyces ( 38 species ) and Puccinia ( 137 species ) are arranged in the order of the families and genera of their host - plants . An ...
Página 344
... species . instability in which , among other contributing factors , cross. All taxonomic work on fresh - water Mollusca perhaps all taxonomy of fresh - water invertebrates -is difficult , even when no obfuscation has accrued from the ...
... species . instability in which , among other contributing factors , cross. All taxonomic work on fresh - water Mollusca perhaps all taxonomy of fresh - water invertebrates -is difficult , even when no obfuscation has accrued from the ...
Índice
Appleyard Direct Measurement of the Napierian Base 231 | 24 |
Archbold T R Device for filling Ore Sacks | 50 |
Physics 428 | 127 |
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