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APPENDIX arrangement assistant Back azimuth Bank Base battery Beach beacon bearing buoys Cape channel chart Chesapeake Church Coast Survey Coast Survey.—Geographical Positions complete computations Creek curve determined direction Distance double East effect engraving entrance examination extended feet Florida four Geographical Positions give half harbor Head Hill House hundred hydrography importance increased Inlet Island land Latitude letter Lieutenant Commanding light light-house Long Longitude maps marked mean Metres Miles Mount Name of station navigation nearly Neck North observations obtained operations party pass placed plate Point present progress Quaker range Recommended reef referred respectfully river Rock Sand Secretary Section shoal shore side Signal Sketch solution sound South Spire Superintendent tides tion topography Treasury triangulation United States Coast United States navy vessel West Yards
Página 484 - That the successful reconnoissance of the western coast of the United States, from Monterey to Columbia river, and the preliminary survey of the entrance to the Columbia, accomplished under the most peculiar and extraordinary difficulties, while they are proofs of his unconquerable energy, determination, and skill, have forever identified the name of Wm. P. McArthur with the progress of the Republic in the West. 3. Resolved, That we most sincerely sympathize with the bereaved and afflicted family...
Página 14 - That all such reports shall, as speedily as may be, be laid before the Secretary of the Treasury; and, if such as to authorize the work without further legislation, he shall forthwith proceed with it: otherwise, such reports shall be laid befare Congress at the next ensuing session.
Página 401 - That hereafter in all new light-houses, and in all light-houses requiring new lighting apparatus, and in all light-houses as yet unsupplied with illuminating apparatus, the lens or Fresnel system shall be adopted, if, in the opinion of the Secretary of the Treasury, the public interest will be subserved thereby.
Página 474 - United States navy, assistant in the coast survey; and that, in his sudden and unexpected decease, the navy has lost one of its most gallant and accomplished officers, and the coast survey one of its most zealous and efficient laborers. 2.
Página 519 - Pot rock once removed, Hell Gate would be less dangerous by one-half, and the eddies, which are now the cause of half the difficulties, would in a measure disappear.
Página 401 - Stales, and make a general detailed report and programme to guide legislation in extending and improving our present system of construction, illumination, inspection, and superintendence: but no additional compensation shall be allowed any person serving on said board.
Página 121 - Whewell has stated, as the cause of the occurrence of these single day-tides ; a view which is confirmed by such examinations as I have been able to make of the hourly tidal observations at Fort Morgan, at the entrance of Mobile Bay. The interference in this case would be between the diurnal tidewave, which represents the diurnal inequality and the ordinary semi-diurnal wave, whether this wave has a regular progress along the coast independently of the semi-diurnal wave, as was at first supposed...
Página 137 - ... made by worms. But however efficient these boring animals may be in preparing the coral stems for decay, there is yet another agent, perhaps still more destructive. We allude to the minute boring-sponges, which penetrate them in all directions, until they appear at last completely rotten throughout.
Página 425 - bank," opposite Beaufort harbor, is of the usual formation of this coast. It is mostly covered with a low pine, and mixed growth, and its average width is about half a mile ; the sand hills and ridges upon it are from 20 to 35 or 40 feet high, thus forming a good and sufficient shelter, from both wind and sea, to all vessels anchored inside the banks; the holding-ground is also good, as shown by the results of the hydrographical survey. The interior shores of the harbor are mostly, of marsh, grown...
Página 489 - ... considerable height of the point at which this light-house is to be placed induced me to withhold the report of Mr. Harrison, and any recommendation concerning it, until I had consulted him as to the probability of interference from fog. He reaffirms his opinion of the propriety of the site, after considering this objection. In recommending lights for the western coast, I have not advised that any of them be revolving lights, except in the case of Point Conception, conceiving that at present,...