=⁂= These elementary works on ALGEBRA and TRIGONOMETRY are written specially for those who will have little opportunity of consulting a Teacher. They are books for “SELF-HELP.” All but the simplest explanations have, therefore, been avoided, and ANSWERS to the Exercises are given. Any person may readily, by careful study, become master of their contents, and thus lay the foundation for a further mathematical course, if desired. It is hoped that to the younger Officers of our Mercantile Marine they will be found decidedly serviceable. The Examples and Exercises are taken from the Examination Papers set for the Cadets of the “Worcester.” “Clearly arranged, and well got up.... A first-rate Elementary Algebra.” --_Nautical Magazine._ =⁂= For complete List of GRIFFIN’S NAUTICAL SERIES, see p. 39. * * * * * LONDON: CHARLES GRIFFIN & CO., LIMITED, EXETER STREET, STRAND. * * * * * GRIFFIN’S NAUTICAL SERIES. Second Edition, Thoroughly Revised and Extended. In Crown 8vo. Handsome Cloth. Price 4s. 6d. THE LEGAL DUTIES OF SHIPMASTERS. BY BENEDICT WM. GINSBURG, M.A., LL.D. (Cantab.), Of the Inner Temple and Northern Circuit; Barrister-at-Law. General Contents.--The Qualification for the Position of Shipmaster --The Contract with the Shipowner--The Master’s Duty in respect of the Crew: Engagement; Apprentices; Discipline; Provisions, Accommodation, and Medical Comforts; Payment of Wages and Discharge --The Master’s Duty in respect of the Passengers--The Master’s Financial Responsibilities--The Master’s Duty in respect of the Cargo--The Master’s Duty in Case of Casualty--The Master’s Duty to certain Public Authorities--The Master’s Duty in relation to Pilots, Signals, Flags, and Light Dues--The Master’s Duty upon Arrival at the Port of Discharge--Appendices relative to certain Legal Matters: Board of Trade Certificates, Dietary Scales, Stowage of Grain Cargoes, Load Line Regulations, Life-saving Appliances, Carriage of Cattle at Sea, &c, &c--Copious Index. “No intelligent Master should fail to add this to his list of necessary books. A few lines of it may SAVE A LAWYER’S FEE, BESIDES ENDLESS WORRY.”--_Liverpool Journal of Commerce_. “Sensible, plainly written, in CLEAR and NON-TECHNICAL LANGUAGE, and will be found of MUCH SERVICE by the Shipmaster,”--_British Trade Review_. * * * * * Second Edition, Revised. With Diagrams. Price 2s. Latitude and Longitude: How to Find Them. By W. J. MILLAR, C.E.,