NAVAL INSTITUTE PROCEEDINGS 1873-1919 PUBLISHED MONTHLY Annual dues (including subscription) for regular and associate members $2.50, payable upon joining the Institute and upon the first day of each succeeding January. No initiation fee is required. Subscription to the Proceedings for non-members is $3.00 per annum; enlisted men, U. S. Navy, $2.50 per annum. Single copies, by purchase, 30 cents; all issues preceding January, 1919, 50 cents. Postage, at the rate of 50 cents per annum, must be paid on foreign subscriptions. Subscriptions must be paid for in advance. Proceedings bound in cloth, $3.50 additional per year, 50 cents of this being for postage. The Proceedings can be secured through any news agency or direct from the Institute. Remittances should be made payable to the SECRETARY AND TREASURER U. S. NAVAL INSTITUTE CANNAPOLIS, MARYLAND U. S. NAVAL INSTITUTE U. S. Naval Institute Proceedings. Published monthly. Annual subscription to the PROCEEDINGS for nonmembers, $3.00; foreign postage 50 cents; enlisted men, U. S. Navy, $2.50. Single copies by purchase, 30 cents; all issues preceding January, 1919, 50 cents. Members or subscribers desiring to receive their copies of the PROCEEDINGS bound in cloth may do so by the payment of $3.50 per year in addition to their dues or subscription, of which 50 cents is for postage. Members or subscribers desiring to have their copies of the PROCEEDINGS bound in half Morocco may have the work done through the Institute at a price of $2.50 per cover, postage or carriage additional. The PROCEEDINGS of each year stripped and bound, make two conveniently sized volumes. Publication of books marked with an asterisk (*) has been discontinued. The Institute, however, holds copies which may be obtained until the present edition becomes exhausted. Catalogue of books published by the Institute containing detailed description and list of contents may be obtained on application to the Secretary and Treasurer, U. S. Naval Institute. Orders for enlisted men of books published by the U. S. Naval Institute to the amount of $10.00, or for ten or more of any of said publications, will be furnished at a discount of 10 per cent, carriage prepaid. Additional discounts allowed for special orders in quantities. NAVIGATION Navigation and Compass Deviations (Revised 1917, with all problems and solutions brought to accord with the new form of the Nautical Almanac). By Commander W. C. P. Muir, U. S. Navy, formerly Head of Department of Navigation, U. S. Naval Academy. A practical treatise on navigation and nautical astronomy, including the theory of compass deviation, prepared for use as a text-book at the U. S. Naval Academy. Though written primarily for use of midshipmen, the various subjects have been so presented that any zealous student possessing but a slight knowledge of trigonometry may be able to master the methods given. Much attention has been given to a description of the various navigational instruments, their uses and errors; to the principles involved in the construction of charts as well as to an account of the work usually performed on them; and the subject of pilotage has been considered at length. The chapters on compass deviation include not only the theory but the various practical methods of compensation, using the rectangular method. Enough of theoretical astronomy has been incorporated to enable any one without a previous knowledge of that science to pursue the study of the practical part of nautical astronomy. The chapter on Time goes largely into detail and is illustrated by the solution of many examples, as are all other parts of the book. In a consideration of "lines of position" considerable space is given not only to the theories and practice of Sumner, but to the later adaptation of those theories by A. C. Johnson, R. N. The book includes a chapter on the New Navigation," or the method of Marcq Saint-Hilaire, with a full explanation of the solutions by computation, by nomography, and by Littlehales' graphic method; also chapters on the "Day's Work," the "Tides" and the "Identification of Heavenly Bodies "; and is in every respect an up-to-date treatise on Modern Navigation. It has been designed to furnish forms for arrangement of work, and is a handy volume in respect to dimensions. It is printed on opaque, thin paper of excellent quality and bulks but 14 inches from cover to cover inclusive, although containing 765 pages. Besides useful tables, extracts from the nautical almanac, and plates of hydrographic and topographic signs and symbols, of variation and of circles of position on a Mercator chart, there are four appendices. Appendix A is a description of submarine signals; appendix B describes the first compensation of a compass before leaving a navy yard and the procedure in special cases when compensating on one heading; appendix C, the use of azimuth tables in finding Z, M, ț, and a great circle course; appendix D, Dr. Pesci's nomogram and its use to the navigator. 12m0, 765 + xvi pages, illustrated by diagrams and many text figures. Price $4.20. Postage paid. Elements of Hydrographic Surveying (1911). By Lieut. Commander George Wood Logan, U. S. N. All branches of the work connected with a marine hydrographic survey as ordinarily carried out have been completely described, and the book is, therefore, available for purposes of reference for naval officers and others who may be engaged in such work. CONTENTS: I. Outline of a Hydrographic Survey.-II. Instruments for Hydrographic Surveying.-III. Base Line Measurement.-IV. Signals and their Constructions.-V. The Triangulation, Main and Secondary. VI. Topography.-VII. Hydrography.-VIII. Astronomical and Magnetic Observations.-IX. Tidal Data.-X. Classes of Surveys.-XI. Plotting. APPENDIX: I. Distance in Feet Corresponding to the Angle Subtended by a Ten-foot Pole.-II. Table of Dip for Computation of Heights.-III. List of Articles Required by a Party for Construction of a Tripod Signal.-IV. List of Articles Required for Triangulation Party.-V. List of Articles Required by Boat Sounding Party. 12m0, 176 pages, full cloth. Price $1.50. Postage paid. A Practical Manual of the Compass. The revision consists chiefly of the addition of a chapter on service instruments and one on the gyroscopic compass. A valuable book for navigators and officers preparing for promotion. Originally prepared by Lieut. Commander Harris Laning, U. S. N., for the use of midshipmen to give them a sufficient knowledge of compass work to enable them to efficiently care for and use compasses on board ship. The complex mathematical theory of the deviation of the compass and the derivation of formulæ have been entirely omitted, but a sufficient explanation of causes and effects is given to enable the student to understand any ordinary problem that may arise. The book contains all the most recent data on the subject of compensation of the compass as well as copies of all the forms used in compass work with an explanation of how to use them. CONTENTS: I. Definition of error. Methods of determining the 7 x 101⁄2 in., 146 pages. Bound in flexible cloth. Price $1.75. Post- Copies of first edition of this book on sale at 75 cents, postage paid. MARINE ENGINEERING Naval Reciprocating Engines and Auxiliary Machinery By Commander John K. Barton, U. S. Navy, Former Head of De- A text-book for the instruction of Midshipmen and for officers pre- This valuable work has been completely revised and brought up to CONTENTS: I. Work and Efficiency.-II. The Action of the Steam. The volume of Plates, bound separately, includes a valuable paper, APPENDIX: Regulations for the Care and Preservation of Machinery |