Transcriber’s notes:

In this e-text a black dotted underline indicates a hyperlink to a page, illustra­tion or footnote (hyperlinks are also highlighted when the mouse pointer hovers over them). The text of the book has been preserved as in the original except for correc­tion of some typographic errors (see below) and a few punctua­tion inconsistencies. Page numbers are shown in the right margin and footnotes are at the end. Footnotes are listed at the end. Some illustrations have been moved nearer to the relevant text.

Corrected misspellings include the following:
constitutent —> constituent
It —> If
ot —> to
endotheliun —> endothelium
ecomomy —> economy
involutary —> involuntary
old factory —> olfactory
tacile —> tactile
irrevelant —> irrelevant
tranverse —> transverse
decebrate —> decerebrate
Thistleton —> Thiselton
opprobious —> opprobrious
Duputryen's —> Dupuytren's
ditēthēsis —> diēthēsis

The original plain cover has had a title added and is placed in the public domain.

INITIATIVE IN
EVOLUTION

BY

WALTER KIDD, M.D., F.R.S.E.

AUTHOR OF “USE—INHERITANCE,” “DIRECTION OF HAIR IN ANIMALS AND MAN,”
“THE SENSE OF TOUCH IN MAMMALS AND BIRDS,” ETC.

WITH NUMEROUS ILLUSTRATIONS

H. F. & G. WITHERBY