Report of the Superintendent of the Coast Survey, Showing the Progress of the Survey During the Year 1852

Report of the Superintendent of the Coast Survey, Showing the Progress of the Survey During the Year 1852

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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1853 edition. Excerpt: ...reduced from eight feet mean low water to twenty and a half feet, I have now the honor to state that a subsequent survey by Major Fraser, of the Corps of Engineers, in charge of the removal of the rocks in Hell Gate, under the appropriation contained in a bill approved August 1, 1852, showed but eighteen feet on this rock, and that one made recently, and after additional blasting, gives a depth at three points of less than twenty feet, and the present least depth at mean low water on the rock a little over nineteen feet. According to Major Fraser there is probably now but a very small part of the rock higher than the plane of twenty feet reference. I would respectfully request authority to publish this statement. Yours, respectfully, A. D. BACHE, Superintendent. Hon. Thos. Corwin, Secretary of the Treasury. APPENDIX No. 10. Extracts from the Report of Lieut. Comg. John Rodgers, U. S. Navy, Assistant in Coast Survey, to the Superintendent, on the discovery of a shoal near the Rebecca shoal, Florida coast. U. S. Coast Survey Steamer Legare, Key West, June 15, 1852. Dear Sir: I have received your telegraphic despatch in relation to the currents in the harbor. I have commenced the observations. I propose, should it meet your approbation, to leave here for Baltimore about the first of July. Our work at the Tortugas has not turned out quite satisfactorily. We found a shoal near the Rebecca with 15 feet water on it; its position is only an approximation, since angles could be taken so far from the light-house alone. Its distance from the Rebecca shoal was estimated from several careful runs by log and compass. Had it been anticipated that we could not be seen from both theodolite stations, I should have used different means. The weather was generally...
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Product details

  • Paperback | 84 pages
  • 189 x 246 x 4mm | 168g
  • Miami Fl, United States
  • English
  • black & white illustrations
  • 1236603168
  • 9781236603166