Evolution Of Today; A Summary Of The Theory Of Evolution As Held By Scientists At The Present Time…

Paperback | February 5, 2012

byHerbert William Conn

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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1886. Excerpt: ... CHAPTER VI. Darwin's Explanation Of Evolution. Summary of the Evidence. We have now considered the chief sources of direct evidence which have been brought forward in favor of organic evolution, as the result of many years' investigation. It remains to consider the various scientific theories which have been advanced to explain evolution. Before proceeding to this subject, it will be well to notice what has been proved by the evidence already deduced, and what inferences can be legitimately drawn. It will in the first place be acknowledged that nothing has been positively proved as to the question at issue, for from its very nature evolution is beyond proof. But while no demonstration is possible, the evidence gradually accumulated has seemed so strong to scientists that it has led to an almost universal acceptance of evolution in some form. We have seen that the amount of variation possible in any species is undoubtedly very great, and, so far as can be discovered, it is practically unlimited; that species and varieties merge into each other in such a way as to be undistinguishable; that the only definition ever given of a species breaks down, since hybrids are not universally sterile, although they usually are so in animals, but the presence of a few exceptions is sufficient to show that there is no rigid law separating species. We have seen that the study of the animal kingdom reveals the fact of some fundamental bond of union uniting the whole together. This unity is shown by the possibility of a classification which is not artificial but natural, since actual relations between species are manifested in the organic world. This unitary principle is shown by the past history of the world as revealed by fossils. There has been from the earliest times a p...

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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1886. Excerpt: ... CHAPTER VI. Darwin's Explanation Of Evolution. Summary of the Evidence. We have now considered the chief sources of direct evi...

Format:PaperbackDimensions:86 pages, 9.69 × 7.44 × 0.18 inPublished:February 5, 2012Publisher:General Books LLCLanguage:English

The following ISBNs are associated with this title:

ISBN - 10:0217714927

ISBN - 13:9780217714921

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