The Origin of Species by Means of Natural Selection: Or, The Preservation of Favored Races in the Struggle for Life, Volumen2 |
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Página 255
... in birds the “ bastard - wing " may safely be considered as a rudimentary digit ,
and in some species the whole wing is so ... and perfect wings , or mere
rudiments of membrane , which not rarely lie under wing - covers firmly soldered
together ...
... in birds the “ bastard - wing " may safely be considered as a rudimentary digit ,
and in some species the whole wing is so ... and perfect wings , or mere
rudiments of membrane , which not rarely lie under wing - covers firmly soldered
together ...
Página 258
The wing of the penguin is of high service , acting as a fin ; it may , therefore ,
represent the nascent state of the wing : not that I believe this to be the case ; it is
more probably a reduced organ , modified for a new function : the wing of the ...
The wing of the penguin is of high service , acting as a fin ; it may , therefore ,
represent the nascent state of the wing : not that I believe this to be the case ; it is
more probably a reduced organ , modified for a new function : the wing of the ...
Página 313
An order or sub - order of Insects having ( like the Hemiptera ) a joiuted beak , but
in which the fore - wings are either whully membranous or wholly leathery . The
Cicadæ , Frog - hoppers , and Aphides , are well - known examples . HYBRID .
An order or sub - order of Insects having ( like the Hemiptera ) a joiuted beak , but
in which the fore - wings are either whully membranous or wholly leathery . The
Cicadæ , Frog - hoppers , and Aphides , are well - known examples . HYBRID .
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Contenido
CONTENTS OF VOL | 1 |
CHAPTER X | 48 |
CHAPTER XII | 129 |
Derechos de autor | |
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Otras ediciones - Ver todas
The Origin of Species by Means of Natural Selection: Or, The ..., Volumen1 Charles Darwin Vista de fragmentos - 1972 |
The Origin of Species by Means of Natural Selection: Or, the Preservation of ... Charles Darwin Sin vista previa disponible - 2016 |
Términos y frases comunes
according admit affinity allied America ancient animals appear areas become believe belonging birds cause certain changes characters climate closely common complex considered continent crossed deposited descended difficulty distant distinct species doubt effects embryo Europe evidence existing explained extent extinct extremely fact families fertility flowers follow formations former formerly forms fossils genera genus geological give given Glacial groups habits hand hybrids important individuals inhabitants inherited insects instance intermediate intervals islands kinds known land less living look mammals manner means migration modified mountains namely natural selection naturalists nearly occur oceanic offspring organs parent perfect period plants points present probably produced progenitor range recent regions remains remarked resemblance respect rudimentary seeds seems separated similar single South stage sterility structure successive suppose theory variations varieties various whole widely
Información bibliográfica
| Título | The Origin of Species by Means of Natural Selection: Or, The Preservation of Favored Races in the Struggle for Life, Volumen2 The Origin of Species by Means of Natural Selection: Or, The Preservation of Favored Races in the Struggle for Life, Charles Darwin, ISBN 0404084001, 9780404084004 Volúmenes4-5 de Works, Charles Darwin |
| Autor | Charles Darwin |
| Edición | reimpresa |
| Editor | AMS Press, 1972 |
| Procedencia del original | Universidad de Minnesota |
| Digitalizado | 22 Mayo 2018 |
| ISBN | 0404084044, 9780404084042 |
| Exportar cita | BiBTeX EndNote RefMan |