PREFACE TO SEVENTH EDITION.

THE present edition of Modern Seamanship is designed to bring the work up to date as completely as possible. To this end, a large amount of new material has been added, much that was obsolete has been cut out, and about one-third of the remainder has been extensively revised or entirely rewritten.

In spite of the fact that the changes introduced have, upon the whole, added to the contents of the book, its size has been greatly reduced by changes in the weight of paper used for both text and illustrations, and it is believed that in its new form it will be found much improved in endurance and convenience of handling.

U. S. NAVAL WAR COLLEGE,

NEWPORT, RHODE ISLAND, March 1, 1917.

AUSTIN M. KNIGHT,

Rear Admiral, U. S. Navy.

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