the theory of evolution with other theories, I thus express
myself: 'The basis of the doctrine of evolution consists, not in an
experimental demonstration--for the subject is hardly accessible to
this mode of proof--but in its general harmony with scientific
thought. From contrast, moreover, it derives enormous relative
strength. On the one side we have a theory, which converts the Power
whose garment is seen in the visible universe into an Artificer,
fashioned after the human model, and acting by broken efforts, as man
is seen to act. On the other side we have the conception that all we
see around us and feel within us--the phenomena of physical nature as
well as those of the human mind--have their unsearchable roots in a
cosmical life, if I dare apply the term, an infinitesimal span of
which is offered to the investigation of man.' Among thinking people,
in my opinion, this last conception has a higher ethical value than
that of a personal artificer. Be that as it may, I make here no claim
for the theory of evolution which can reasonably be refused.

'Ten years have elapsed' said Dr. Hooker at Norwich in 1868 [Footnote:
President's Address to the British Association.] 'since the
publication of "The Origin of Species by Natural Selection," and it is
therefore not too early now to ask what progress that bold theory has
made in scientific estimation. Since the "Origin" appeared it has
passed through four English editions,' [Footnote: Published by Mr.
John Murray, the English publisher of Virchow's Lecture. Bane and
antidote are thus impartially distributed by the same hand.] two
American, two German, two French, several Russian, a Dutch, and an
Italian edition. So far from Natural Selection being a thing of the
past [the 'Athenaeum' had stated it to be so] it is an accepted
doctrine with almost every philosophical naturalist, including, it
will always be understood, a considerable proportion who are not
prepared to admit that it accounts for all Mr. Darwin assigns to it.'
In the following year, at Innsbruck, Helmholtz took up the same
ground. [Footnote: 'Noch besteht lebhafter Streit um die Wahrheit oder
Wahrscheinlichkeit von Darwin's Theorie; er dreht sich aber doch
eigentlich nur um die Grenzen, welche wir fuer die Veraenderlichkeit
der Arten annehmen duerfen. Dass innerhalb derselben Species erbliche
Racenverschiedenheiten auf die von Darwin beschriebene Weise zu kommen
koennen, ja dass viele der bisher als