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Review: The Origin of Species
Summary
- by Asa Gray THE ORIGIN OF SPECIES BY MEANS OF NATURAL SELECTION (American Journal of Science and Arts, March, 1860) This book is already exciting much attention. Two American editions are announced, through which it will become familiar to many…
Matches: 21 hits
- … found to blend in Nature through a series of intermediate forms, community of origin is inferred, …
- … physical science. For, though it well may be that ‘organic forms have no physical or secondary cause …
- … and the actual association of species, still less their forms; but that every adaptation of species …
- … of naturalists (having the same data before them) as to what forms are species attests the value of …
- … to the extent of practical monstrosity, although we secure forms which would not be originated and …
- … varieties, if left to run wild, would revert to their aboriginal stocks. Probably they would …
- … the differences which prevail among naturalists as to what forms should be admitted to the rank of …
- … the British genera which include the most polymorphous forms, it appears that Babington’s Flora …
- … They make it plain that, whether species in Nature are aboriginal and definite or not, our practical …
- … separating the latter can be divned by intermediate forms, as it sometimes is, no botanist long …
- … the broader view. Whether we should continue to regard the forms in question as distinct species, …
- … agree, and do not increasingly tend to agree, as to what forms are species and what are strong …
- … or in ascending a mountain, we far oftener meet with stunted forms, due to the directly injurious …
- … to desolate the world, or invent laws on the duration of the forms of life!’—(pp. 72, 73.) …
- … orders. ’—(p. 114.) The abundance of some forms, the rarity and final extinction of …
- … representatives, are other consequences. As favored forms increase, the less favored must diminish …
- … for the gradual elimination and segregation of nearly allied forms—such as varieties, sub-species, …
- … still further; while he admits that ‘the more distinct the forms are, the more the arguments fall …
- … testimony have been lost. He is confident that intermediate forms must have existed; that in the …
- … or derived, however, this arrangement to keep apart those forms which have, or have acquired (as the …
- … are derivative or compound, developed from some preceding forms of matter, irreligious? Were the old …
Darwin’s reading notebooks
Summary
In April 1838, Darwin began recording the titles of books he had read and the books he wished to read in Notebook C (Notebooks, pp. 319–28). In 1839, these lists were copied and continued in separate notebooks. The first of these reading notebooks (DAR 119…
Matches: 9 hits
- … th Ed. 10 8 vo . [Serres 1838] good to trace Europ. forms compared with African. Hist. …
- … of S. Devonshire [Bellamy 1839] chiefly on distribution of forms said to be Poor Sir. J. …
- … on the Transmission from Parent to offspring of some Forms of Disease. 1851 [Whitehead 1851]. …
- … of level— d[itt]o to facts showing gentle transition of forms——oscillation of climate——mammals in …
- … ‹des› couroucous et rupicole vert instances of American forms in East. Ind: Archipelago. Raffles. …
- … Delineations and descriptions of the skulls of the aboriginal and early inhabitants of the …
- … being an analysis of the distribution of vegetable forms over the surface of the globe in connexion …
- … or, a comparative view of the skulls of various aboriginal nations of North and South …
- … On the transmission, from parent offspring, of some forms of disease, and of morbid taints …
Essay: Natural selection & natural theology
Summary
—by Asa Gray NATURAL SELECTION NOT INCONSISTENT WITH NATURAL THEOLOGY. Atlantic Monthly for July, August, and October, 1860, reprinted in 1861. I Novelties are enticing to most people; to us they are simply annoying. We cling to a long-accepted…
Matches: 27 hits
- … also leads to much extinction of intermediate or unimproved forms. Now, though this divergence may …
- … a supernatural beginning of life on earth, in some form or forms of being which included potentially …
- … improvements, entailing the disappearance of intermediate forms, less adapted to any one particular …
- … mechanical power as varieties or derivative and convertible forms of one force, instead of …
- … yet gone back to the origin and can affirm that the present forms of plants and animals are the …
- … and increasing disagreement as to whether various forms shall be held to be original species or …
- … varieties are themselves variable, and that very diverse forms have been educed from one stock. …
- … line, it is now certain that a gradual replacement of old forms by new ones is strongly suggestive …
- … diversification of all species, and all special types or forms, from four or five remote primordial …
- … As the facts stand, it appears that, while some tertiary forms are essentially undistinguishable …
- … or may be diversified into two, three, or more species, or forms as different as species. This …
- … later secondary; but there is less and less localization of forms as we recede, yet some …
- … on land, which have driven all tropical and subtropical forms out of the higher latitudes and …
- … from simple and general to complex and specialized forms; also ‘the parallelism between the order of …
- … which conspire to prove that the ancient and the recent forms of life ‘are somehow intimately …
- … between the two kingdoms, and the arrangement of all their forms in groups subordinate to groups, …
- … susceptible of exact natural circumscription. Intermediate forms occur, connecting one group with …
- … fail to suggest a former material connection among allied forms, such as that which the hypothesis …
- … that the rule holds, under due qualifications and altered forms, throughout the realm of Nature; …
- … while it exhibits close approximations in the lower forms; also in a common or similar ground of …
- … propagation by buds, though perfect in some of the lowest forms of life, becomes evanescent in …
- … animals have diverged in time into cognate species, or into forms as different as species, are led …
- … the origination and diversification of animal and vegetable forms through the operation of secondary …
- … do we know, and why must we believe, that, fitting precedent forms being in existence, a living …
- … directions, nor produce crude, vague, imperfect, and useless forms, there is no reason for supposing …
- … parents; and this effectively excludes crude and impotent forms. Wherefore, if we believe that the …
- … has he thereby strengthened our conviction that the three forms are designed to have the differences …
Darwin in letters, 1868: Studying sex
Summary
The quantity of Darwin’s correspondence increased dramatically in 1868 due largely to his ever-widening research on human evolution and sexual selection.Darwin’s theory of sexual selection as applied to human descent led him to investigate aspects of the…
Matches: 2 hits
- … of Darwin’s, used his contacts to supply copies to Aboriginal mission stations in Victoria, …
- … mechanisms and the comparative fertility of different flower forms. Müller offered observations of …
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