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ESSAYS OF A BIOLOGIST
DUCTLESS AND
OTHER GLANDS
Fred E. Wynne, M. B.
A brief description of the results of recent research into thephysiology and functions of the ductless glands and the application ofthis knowledge to the prevention and cure of disease.
ESSAYS of a BIOLOGIST
by
JULIAN HUXLEY
New York
ALFRED · A · KNOPF
1923
COPYRIGHT, 1923, BY ALFRED A. KNOPF, INC.
Published October, 1923
Set up, electrotyped, printed and bound by the Vail-Ballou Press, Inc., Binghamton, N. Y.
Paper furnished by W. F. Etherington & Co., New York.
MANUFACTURED IN THE UNITED STATES OF AMERICA
TO MY COLLEAGUES AND FRIENDS
AT THE RICE INSTITUTE
HOUSTON, TEXAS
PREFACE
A preface should be long, like one of Mr. Shaw’s, or short. I proposethe latter.
The essays here collected were written on very various occasions. Thismust excuse the considerable overlap that will be found among them. Ihave not thought it worth while to attempt to get rid of this, since,though facts may be repeated, the point of view and general context areon each occasion different.
Contrary to all custom, I have put the meat courses at the two endsof my menu. If an author may presume to advise his readers, I wouldsuggest that, after finishing the first essay, they should (if theyretain a stomach for more) proceed at once to the last. This done, theywill find the others all in a sense lesser variations (if I may changemy metaphor) upon the same themes.
In spite, however, of the diversity of their occasions, there is acommon thread running through them, a common background of ideas. Ido not know whether I am justified in calling those ideas especiallybiological, but they are certainly ideas which must present themselvesto any biologist who[Pg viii] does not deliberately confine himself to thetechnicalities of his science.
The biologist cannot fail to be impressed by the fact that his scienceto-day is, rou