The concept of evolution has been applied, not only to biology, but to numerous other fields as well. In various disciplines, both the study of the history of technology and the history of philosophy, the concept is invoked to structure the successive changes in a technology, a concept, or the thinking of an individual philosopher over the course of his work. Selective Evolution has also been proposed as a means by which ideas propogate, spread and change (See Meme, History of philosophy, History of technology, Philosophy of science).
In general use, evolution in this context refers to theories which identify, and then connect, the discrete steps involved in the process of change from original idea, to its stable form, for example, the first telephone used a different process for converting sound into electricity than the first commercial phone, this step would be part of the telephone's evolution.
This philosophy-related article is a stub. You can help Wikipedia by expanding it (http://en.wikipedia.org/w/index.php?title=Evolution_of_an_idea&action=edit).
An "anti- man-serum" was prepared by injecting subcutaneously sterile human serum into a rabbit till the animal became immune to poisoning from the foreign blood-serum.
The mistake arises from the confusion of the ideas "similarity of blood" and "blood-relationship" in the genealogical sense of the term; otherwise it would be at once perceived that the fact of chemical similarity of blood is of no more importance for the theory of evolution than any other fact of comparative morphology or physiology.
They certainly form an excellent demonstration in favour of the proposition defended throughout this article: that such forms as the endemic species, which may well be compared with the races of the human species, were not directly created, but arose by some process of modification which was greatly facilitated by their complete isolation.
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