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PRESS OF THE FRIEDENWALD CO.

BALTIMORE.

No. 77.

Device for Sailing Ships.-The Bazin Disc Wheel Steam-

boat.-To Prevent Collisions at Sea.-Wounds by the

Bullets of Modern Rifles.-Armor Tests.-Ships of War.

Book Notices and Books Received,

Bibliographic Notes,

Officers of the Institute,

527

529

537

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