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——— Reviews of Late Books The Stability of Ships, by George Johnson, B.Sc.; cloth, 56 pages, 8% x 51% inches, 16 plates and tables, pub- lished by the Journal of Commerce and Shipping Telegraph; printed by Charles Birchall Ltd., Liverpool; sup- plied by Mariner Review, (cost on ap- plication) and in Europe by the Pen- ton Publishing Co., Caxton House, London. This valuable book has been brought out by the Royal Society for the En- couragement of Arts, Manufactures and Commerce under the Thomas Gray Memorial trust. This little book on stability is directed to anyone inter- ested in the subject but particularly to ship officers who should know about the stability of their particular ships. An attempt is made to review the information necessary for a ship offi- cer to obtain an exact working knowl- edge of the stability of his ship. The supply of this information involves and implies a certain amount of work —less perhaps, to the officer than to the shipbuilder—and it will rest with the officer to decide how far he is capable of using it. His attitude will determine how much of it the owner will request from the builder. The language of high mathematics has been avoided in this treatise as much as possible. We consider this book an especially useful, clear and simple exposition of the stability of ships and it deserves a place in the library of everyone in any way interested in this subject. Tunnard’s Tanker Tables, A Hand- book on Petroleum Metrology, by B. Tunnard, cloth, 78 pages, 8% x 5% inches; of these 78 pages, 38 are de- voted to Tunnard’s tanker tables; pub- lished by Brown, Son & Ferguson Ltd., The National Press, Glasgow, supplied by Marine Review for 7 s. 6 d. plus 15 cents postage and in Europe by the Penton Publishing Co., Caxton House, London. This is the second edition and the author points out that with the ex- tending use of petroleum and its prod- ucts, some consideration should be siven to a correct method of convert- ing volumes to weights and vice versa. When it is remembered that modern tank steamers carry cargoes amount- ing to millions of gallons—to say noth- ing of the huge quantities stored in installations ashore, the possible error arising from discrepancies in the values of weights and volumes as- sumes considerable proportions. To render these tables more ap- plicable to an international use they have been extended to cover the metric system and conversion factors at both 60 degrees Fahr. and 62 degrees Fahr. have been added to overcome the diffi- 34 culty arising in the use of these tem- peratures in petroleum metrology. Know Your Own Ship, by Thomas Walton, cloth, 446 pages, 74% xX 5 inches; published by J. B. Lippincott Co., Philadelphia, and supplied by Marinr Review, for $5 plus 15 cents postage; and in Europe by the Penton Publishing Co., Caxton House, London. This is the twenty-sixth edition of this valuable work, thoroughly revised throughout by John King. It contains simple explanations of stability, trim, construction, tonnage and freeboard of ships, together with a fully worked out set of the usual ship calculations (from drawings). This book has been especially arranged for the use of ship’s officers, superintendents, engineers, draftsmen, and others. The chapters concerned with the de- sign, construction and strength of ships have been re-written in view of advances in shipbuilding and the parts relating to stability and rolling have been so recast as to render the prin- ciples and their practical application in the management of ships easily un- derstood. Some of the important as- pects of the international conventions affecting ship design and the merchant marine are also considered in this book. Another important feature for both deck and engineer officers is the man- ner in which test questions for exam- inations have been modernized and extended. This book is worthwhile for beginners as well as for those more experienced in the design, build- ing and operation of ships. Man-Hour’ Electrical LHstimating Manual, by Theodore Heinzerling, cloth, 384 pages, 8 x 11 inches; pub- lished by Rurick Press Inc, New York; supplied by Marine Review for $10 plus 15 cents postage and in Eur- ope by the Penton Publishing Co., Cax- ton House, London. This book of labor data is intended as a direct aid in making and checking estimates for all types of electrical in- stallation. For the shipyard it is par- ticularly valuable for estimating the cost of proposed electrical installa- tions, and for the planning of all such installations. The book is divided into the follow- ing three sections: Introduction—in which are given detailed directions for preparing electrical estimating, and directions for finding and using the data in the book; man-hour charts—a comprehensive collection of labor data taken from the cost records of thou- sands of buildings, giving the man- hours required to install 71 different types of electrical equipment in every type of domestic, commercial and in- dustrial buildings; the third section MARINE REVIEw—J anuary, 1933 is devoted to convenience wiring charts, including six wiring charts containing much valuable engineering data. The Oharming Sally, a novel by Maud Hart Lovelace, pages 311, 7% x 5 inches, published by John Day Co,, New York. It is unusual to review a novel in these pages and the reason in this case is the interesting historical research of the author in her description of the sailing vessel, CHARMING SALLY, and shipping customs, including passenger travel, in the middle of the eighteenth century. It is a matter of historical record that «a traveling company of actors, about which the action of the novel revolves, arrived in Virginia in 1752 on board a_ sailing vessel named CHARMING: SALLY, Capt. Lee, master The kind of ships in those days were, sloops, brigs, schooners and snows. The CHARMING SALLY was a snow. It is interesting to note, that while nautical terms in the eighteenth cen- tury were so much what they are today, life on a vessel then and now should be so completely different. Ac- commodations then were crude to an unbelievable degree. The cabin could be appropriated by one group of per- sons and the remainder of the pas- sengers fared as best they could. The cabin was far from luxurious, a good sized wave could sweep in and put out the fire in the cabin stove around which everyone hovered. The ship’s food was not adequate and wise travelers brought their own supplies. They even provided their own wines. Of course, a cow, pigs and chickens were carried on every voy- age, and passengers could have new- laid eggs for breakfast, but they grew so much attached to their livestock during a long voyage that they hated to secure their Sunday roast of pork. Clever tourists used to plant turnips and thereby get greens for salads to help out the mould biscuits which seem to have been their staple food. Index to Transactions, of the Society of Naval Architects and Marine En- gineers, Volume 1, 1932, cloth, 135 pages, 9 x 6 inches; published by The Society of Naval Architects and Ma- rine Engineers, New York. This first volume of the index covers the papers presented in volumes 1 to 38 of the transactions of the society for the years 1893 to 1930. A vast store of valuable information is con- tained in these transactions contrib- uted by leading authorities in the field. They constitute an encyclopedia of great value for reference. They in- clude extensive researches, analyses of various problems and organized data which are frequently referred to. This index makes this information available for practical use and study. All subject matter of sufficient im- portance in both papers and discus- sions is referred to.