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April, 1919 Book Review Steel Ships: Their Construction and Maintenance, by Thomas Walton; cloth; 332 pages, 6 x 9 inches; published by Charles Griffin & Cos Ltd., and fur- nished by THE Martine Review for $7.00. Shipbuilding holds the center of the stage at the present time and for this reason the fourth edition of Mr. Wal- ton’s book, which has become a stand- ard reference, is particularly timely. As in previous editions, the book con- tains authentic information of value to the shipbuilder and others interested in martitime subjects. Much new has been added which includes the Isherwood system of framing, late developments of turret, trunk, single- deck and other types of steam vessels, details regarding the building. and launching of the Lusirania and MAvreE- TANIA and other timely subjects. mate- rial The book is carefully written. In pre- first edition, material of which appears in the pres- ent issue, the author spent four years. The first two chapters that deal- directly paring the much of the @ = fssssod ea A some unusual features has been built by the Northwest Engineering Works, Green Bay, Wis., for the United States shipping board from designs and specifications by J. Murray Watts, naval architect, Phila- delphia. One of the outstanding fea- tures is the large amount of coal car- SEA-GOING tug embodying - THE MARINE: REVIEW with iron and steel’ were written from knowledge gained by the author while making a study of the subject in the Cleveland district of England. The sub- sequent chapters were written from actual experience encountered by the author in his every-day vocation. The book is well illustrated and the draw- ings from which the majority of the illustrations were made are well exe- cuted. The illustrations are placed in close juxtaposition to the portions of the work to which they refer, thus affording quick reference. The whole subject of ship construction has been treated from a practical point of view and the requirements of students, ship- yard superintendents, shipbuilders and marine engineers have been carefully studied. The work begins with a comprehensive account of the* manufacture of iron and steel, the author deeming it necessary that a fundamental knowledge of this subject be acquired those inter- ested in steel shipbuilding. This is fol- lowed by tests of strength and quality by for ‘lransatlantiec ried, provision being made for a nor- mal capacity of 200 tons, while 250 tons can be carried for a transatlantic trip; As the tug is designed especially for long ocean voyages, accommodations are provided for an unusually large crew, the forecastle of this 140-foot craft containing bunks for 16 men. ZA Mi a: oa eee Tore ra nin t fd 183 of steel. While the subject of ship classification is sometimes confusing, ship ‘the book in question explains it in de- tail. Ship stresses and strains also come in for complete and detailed discussion. A full description of the fundamental types of vessels known as full scantling, spar decked, awning decked and modi-— fications of these types are included, to- gether with descriptions of typical vessels. A large section of the book is de- voted to ship structure in all its varied parts, including framing, plating, stern frames, rudders, riveting, pumping, ventilation, etc. This section also in- cludes data on launching. The book closes with a chapter de- voted to .the causes of decay and deterioration and particular attention is given to the parts of ships most liable to rapid corrosion. The best means for combatting corrosion are given, to- gether with other suggestions for pre- serving and maintaining ships in a state of efficiency. ——, / ‘ a ee ie 5 SS 1) es 7 we AY 23 ee rns a ty acne nre Service The deckhouse also is of unusual con- struction, strength being the primary requisite. It is built throughout of steel with extra large, brass rimmed portlights and doors fitted with special reference to absolute water-tightness. The accompanying designs show the sturdy character of this craft, whose dimensions are 140 feet over OUTBOARD PROFILE OF SEA-GOING TUG, SHOWING AUXILIARY SAIL ARRANGEMENT