5 PREFACE

both by Dr. Roy S. MacElwee, of Charleston, South
Carolina, U.S.A., published by the McGraw-Hill Book
Company Inc., of New York, and obtainable in this country
at the offices of the McGraw-Hill Publishing Co., Ltd.,
6 Bouverie Street, Fleet Street, E.C.; also to Wharf
Management, Stevedoring and Storage by MacElwee and
Taylor, published by D. Appleton and Company, New
York and London.

Finally, the author desires to express his grateful acknow-
ledgments to several friends who have kindly supplied data
and made suggestions, and, in particular, for permission
to use the photographs and plans.

BROAD SANCTUARY CHAMBERS,

WESTMINSTER, S.W.1.
January, 1920.

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