vi PREFACE.
Minutes of Proceedings, as well as to the writers of the papers
for their personal sanction. In addition to these gentlemen, the
author feels that he cannot omit to specify his great obligation
to Mr. A. G. Lyster, Engineer-in-Chief to the Mersey Docks and
Harbour Board, for the privilège of making use of much valuable
material; to M. Pastakoff, of St. Petersburg; M. Delachanal, of
Havre; and to many other English and Continental engineers for
esteemed contributions relating to recent practice at various ports.
The Editors of Engineering and of The Engineer are thanked
for permission, very courteously accorded, to make extracts from
the columns of their journals. A number of well-known engin-
eering firms have also kindly placed at the author’s disposai diagrams
of plant and appliances manufactured by them.
Whilst every care has been taken to ensure the accuracy of
statistics and calculations, it is possible that a few errors may
have crept in and escaped detection. It is trusted that these, if
discovered, may prove to be of minor importance; but, in any
case, the author will be very grateful for an intimation of them.
BRYSSON CUNNINGHAM.
Liverpool, January, 1904.