XIV. Souter Point, section of lantern, lens, and low light-room. 126 XXXIV. Interior adjustments of level in mineral-oil light-house lamps 214 212 214 220 226 230 XL. La Hève, front elevation of magueto-electric machine 232 234 238 240 XLIV. La Hève, switches. XLV. La Hève, regulators XLVI. Lanterns and lenses for electric and oil lights at Cape Grisnez.... XLVII. Submarine foundation for harbor light-houses..... XLVIII. Lens for electric light....... 19. Diagram illustrating revolving intermittent gas-lights.. 21. Stevenson's holophone, front elevation. 24. Sautter's lantern for electric light 25. La Hève, plan of electric light-room. 26. La Hève, vertical section of electric light-room 27. La Hève, lens for electric light 28. Swedish light-house, details.. 29. Swedish light-house, details.... 30. Osnaghi's reflector for flashing light.. 31. Osnaghi's reflector for fixed light.... Page. 242 246 79 91 92 102 104 116 119 11:3 129 124 12 134 13: 145 130 134 155 163 10 1-0 188 1** 207 IN THE SENATE OF THE UNITED STATES, March 30, 1874. Resolved, That the Secretary of the Treasury be directed to transmit, for the information of the Senate, the report of Major George H. Elliot of his inspection of European light-house establishments. Attest: GEO. C. GORHAM, Secretary. TREASURY DEPARTMENT, Washington, D. C., April 23, 1874. SIR: I have the honor to transmit copy of a letter from Professor Joseph Henry, Chairman of the Light-House Board, dated the 22d instant, covering the report of Major George H. Elliot, Engineer Secretary of the Light-House Board, of his tour of inspection of the light-house. establishments of Europe, submitted in response to the resolution of March 30, (United States Senate,) directing the Secretary of the Treasury to transmit said report for the information of the Senate. I am, very respectfully, Hon. M. H. CARPENTER, WM. A. RICHARDSON, Secretary. President United States Senate pro tem. TREASURY DEPARTMENT, OFFICE OF THE LIGHT-HOUSE Board, Washington, April 21, 1874. SIR: In compliance with Department letter of the 1st instant, transmitting copy of the resolution of the Senate of the United States, directing that "the report of Major George H. Elliot of his inspection of Euro pean light-house establishments" be forwarded to that body, I have the honor to enclose Major Elliot's report, as directed. Very respectfully, Hon. W. A. RICHARDSON, Secretary of the Treasury. JOSEPH HENRY, Chairman. IN THE SENATE OF THE UNITED STATES, June 2, 1874. Resolved, That the report of Major George H. Elliot of a tour of inspec tion of European light-house systems be printed, and that one thousand additional copies be printed for the use of the Treasury Department. Attest: GEORGE C. GORHAM, Secretary. TREASURY DEPARTMENT, OFFICE OF THE LIGHT-HOUSE BOARD, Washington, May 25, 1874. SIR: I beg leave to call your attention to a report presented to the Senate of the United States, by the honorable the Secretary of the Treasury, from the Light-House Board, by Major Elliot, of the Engineer Corps. In the year 1872 the head of the light-house system in Great Britain sent a commission to this country to examine and report upon the fogsignals which had been adopted by the Light-House Establishment of the United States, and in return for the courtesy they received they invited the Light-House Board to send an agent, who would receive facilities for obtaining a knowledge of the later improvements in regard to aids to navigation which had been adopted in Great Britain. In accordance with this invitation, the Light-House Board sent Major Elliot, its engineer-secretary, to obtain the desired information. The report now before the Senate contains a full account of all the latest improvements in regard to aids to navigation both in England and in France. It therefore consists of matter of great value to the light-house service, and I beg leave to request that you will advocate the resolution now before the Committee on Printing. The document will not only be required for immediate use by the offi cers of the Board in this city, and also by those in the various districts. but will be of continued use for years to come. I have the honor to be, very truly, your obedient servant, Hon. H. B. ANTHONY, United States Senate. Chairman. EXTRACT FROM THE REPORT OF THE LIGHT-HOUSE BOARD TO THE SECRETARY OF THE TREASURY FOR THE FISCAL YEAR ENDING 30TH JUNE, 1873. The Light-House Board, during the past year, desirous of acquainting itself minutely with any improvements which of late years may have been introduced into the light-house service in Europe, obtained the sanction of the honorable the Secretary of the Treasury to commission Major Elliot, of the Corps of Engineers of the Army, and engineersecretary of the Board, to visit Europe and report upon everything which he might observe relative to light-house apparatus and the management of light-house systems. He has lately returned, after having gathered information which will prove of importance in its application in our country, as will be evident from his preliminary report. Major Elliot was everywhere received with marked cordiality, and every facility was given him to inspect the various coasts and systems of administration, of which full information was furnished him, together with the drawings and models necessary for a perfect acquaintance with the latest improvements which have been adopted in Great Britain and on the continent. The special thanks of the Board are due to His Royal Highness the Duke of Edinburgh, the master; to Sir Frederick Arrow, the Deputy Master, and the Elder Brethren of Trinity House, for the warmth of their reception and the marked distinction they conferred upon him as the representative of the Board; and to M. Léonce Reynaud, Inspectorgeneral of the Corps des Ponts et Chaussées and Director of the French light-house service, for his efforts to make the visit of Major Elliot profitable to his country and agreeable to himself. “TREASURY DEPARTMENT, "OFFICE OF THE LIGHT-HOUSE BOARD, "Professor JOSEPH HENRY, L. L. D., Chairman: "I have the honor to make a preliminary report of my journey of inspection of the light-house establishments of Europe, which I have made by direction of the Board, with the approval of the honorable the Secretary of the Treasury, and from which I returned a few days since. "I sailed on the 30th of April, and, after a pleasant voyage, reached Liverpool on the 10th of May, observing en route the light-houses on the Irish coast, and the light-ships and buoys on the approaches to Liverpool. "On the 13th of May I arrived at London, and was cordially received by Sir Frederick Arrow, the Deputy Master, and the Elder Brethren of the Trinity House, which has charge of the lights of England and a supervisory control over those of Scotland and Ireland. The Trinity House kindly offered me an opportunity of making a tour of inspection of the light-houses, &c., on the coasts of England in the steamers which were about to take the annual supplies, and at the first session after my ar |