Science in 1907.
I am not aware of any ,strikingly. specially important development
of science during the past year, though all the sciences have
advanced by the usual amount of specialised study and research, As
regards the science with which I am most interested- that of
organic Evolution- the last few years have seen a considerable
advance towards the establishment of <
the original>
Darwin's theory of Natural Selection on a more extended basis
of observation and experiment than had previously been possible.
The two chief workers in this line of research are, Mr. W. L. Tower
of the University of Chicago, and Professor E.B. Poulton of
the Hope Museum, Oxford. The former, after five years continuous
experiment and observation on a very large scale and over a wide
area of country, published, in 1906, a large volume on Evolution in
Chrysomelid Beetles of the genus Leptinotarsa, in which he
has demonstrated the action of natural selection as the great agent
in the formation of new species. this is established both by
experiment and by <
the observation
of> a close study of the living insects <
over a> under
varying climatic and environmental conditions. Professor
Poulton's work has been <in> the systematic study for a much
longest period of the whole range of the phenomena of Protective
resemblance and Mimicry, in every part of the world. He has
brought together in the Hope Museum the first extensive <and
systematic> collections so arranged as to illustrate the
phenomena of Mimicry, which are now <shown> proved to be far
more widespread and important than had formerly been suspected, and
to be absolutely inexplicable on any other theory than that of
continuous variation, and
elimination of the
less fit through the struggle for
existence. Both these great investigators agree in rejecting. as
being wholly opposed to the facts of nature, the three alternative
theories - neo-Lamarkism, mutation, and Mendelism. The first of
these has now few supporters, and is absolutely condemned by Mr.
Tower. The upholders of the other two theories have , for the
last few years, been very loud in their claims, but are shown by
Prof. Poulton in a work (now in the press) entitled "Essays on
Evolution", to be altogether<…….> inoperative
in <question> <nature> The production of new species.
In this he is supported by <most> many eminent students of
Evolution in all parts of the World. My own opinion is that the
extravagant claims made by the Mutationists and Mendelians for what
<is ..> are merely side issues <of> in the
<great> problem of heredity, <are> are entirely without
foundation and, to those who are well acquainted with the works
of Darwin and the facts of nature, are little less than
ridiculous.
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