;
,
»PREFAŒ
and endless pains he has taken to produce the coloured
_
illustrations from original black and white photographs
suppliedeither by Mr. D. P. Wilson or taken specially in
the Plymouth‘laboratory; for his care in producing the
wash and line drawings under our directions.; and for his
generous assistance and advice in all matters pertaining to
the arrangement of the illustrations.
.
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F. s. RUSSELL.
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'
C. M. YONGE.
:
PREFACE
SECOND
EDITION
THIS second edition has been essentially’ a reprint rather
than a revised edition.
In consequence it has not been
‘
possible to make any substantial alterations.
Any errors
found in the rst edition have, however, been cofrected,
and in any instance where fresh knowledge has sho'wn.
previous ideas to be incorrect, new information. has been
substituted.
During the eight years which have elapsed
since the rst edition Was published, considerable additions
'
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have been made in our knowledge of the details of life in the
:
sea.
These have not, however, involved any change .in
_
.
the essential principles given in the book, and, exCept for
'
few .mi'nor altérations, the book has needed little revision.
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New photographs have
been used for Plates 58 and 65,
.
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_Our thanks are due to Mr. G. W. Otter for kind permission
to publish
those…0n Plate 58and*to 'Mrsu C. M. ‘Yonge for
Plate 65.
The titles of a- few recently published books
;
dealing
with the
havebeen added to the bibliography
'
atthe end.
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F.S.R.