vi
PREFACE
the Marine Biological Association for the unfailing interest
they have shown in this work, and for the many helpful
criticisms and suggestions that they have made ; and
'
especially to Mr. H. W. Harvey for his great assistance With
Chapter X, concerning which the opinions of a modern
hydrographer are invaluable.
,
We are also especially indebted to the Council of the
‘
Marine «Biological Association of the United Kingdom for
‘
their kindness in allowingthe publishers to have photo_
_
graphs specially taken at the Plymo‘uth laboratory, and
:îor putting the laboratory and library at the disposal of
Mr. W. ]. Stokoe._
'
We
grateful tooutwives for the great assistance they
'-rendered in the preparationof the manuscript, and to the
father of one of us, Mr. W. Russell, ,for his care in reading
through the MS.
.
.
:
…
It has been our-aim to illustrate this book With as many
.;
original drawings- and photographs as we could obtain,
supplemented by many beautiful illustrations buried away
in the mass of scientic literature and so unfortunately
hidden from the eyes of most people.
This end could not
.
have been achieved—without the cordial cO—operatib and
,
assistance
received — from — all
sides—personal friends,
__
7
'
and publishers—and to all and
we Wish to
..
«express our gratitude.
are
especially indebted to
Douglas P.;WilsOn for so lavishly placing at our
'_
dispoSal his many beautiful photographs of shoreli—feirom
*
'
'
Which—we chose the illustrations for‘the following " Plate:
f
8,19, IO, ::I;
14, 15,
IS,-20, 22 top, 45 top, 46
‘
.‘
109 top,_ 127 bottom ; to Dr. Marie V. Lebon:
for-_ the original paintings for Plates 40,
88_; to
.—
‘
'
Mr. W.,Ru‘ssell for the original paintings for plates 31, 50 ;
to Dr. T‘.“ A. StephenS‘on for Plate‘Ï16 top, and to Mr. H. O.
-
29«;‘
HarryVanderve for._per—
.