A Treatise on Marine Surveying: Prepared for the Use of Younger Naval Officers, with Questions for Examination and Exercises, Principally from the Papers of the Royal Naval College, with the ResultsMacmillan, 1882 - 307 pages |
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Page 94
... islet in lat . 64 ° 58 ' N. , long . 19 ° 37 ′ W. , was then seen bearing 4 points on the starboard bow , and after running 9 miles farther on the same course ( west ) the islet was exactly abeam . Find the position of the ship and the ...
... islet in lat . 64 ° 58 ' N. , long . 19 ° 37 ′ W. , was then seen bearing 4 points on the starboard bow , and after running 9 miles farther on the same course ( west ) the islet was exactly abeam . Find the position of the ship and the ...
Page 99
... Islet . Comp . co . E. & S. Current NE . 4 ' . Obs . 72 ° 14 ' E. Long . DR . 72 ° 12 ′ E. 99 16o . Lat . DR . 39 ° 38 ′ S. , Long . 23 ° 21 ′ W. 2nd Id . is in Lat . 39 ° 16 ′ S. , Long . 22 ° 16 ′ W. Rock in 39 ° 14 ' S. , 22 ° 28 ' W ...
... Islet . Comp . co . E. & S. Current NE . 4 ' . Obs . 72 ° 14 ' E. Long . DR . 72 ° 12 ′ E. 99 16o . Lat . DR . 39 ° 38 ′ S. , Long . 23 ° 21 ′ W. 2nd Id . is in Lat . 39 ° 16 ′ S. , Long . 22 ° 16 ′ W. Rock in 39 ° 14 ' S. , 22 ° 28 ' W ...
Page 266
... islet 56 00 of Sand Summit 68 20 Rock on beach 297 50 99 90 30 Bluff 314 20 " " South point 116 20 Quail islet 350 00 Coast line near 137 00 North base and line ) 342 30 of beach ( 3 ) Quail islet summit . Zero , North base 360 ° 0 ' of ...
... islet 56 00 of Sand Summit 68 20 Rock on beach 297 50 99 90 30 Bluff 314 20 " " South point 116 20 Quail islet 350 00 Coast line near 137 00 North base and line ) 342 30 of beach ( 3 ) Quail islet summit . Zero , North base 360 ° 0 ' of ...
Page 268
... islet then trends to Flag A " " ( Trend of reef near , 40 ° 0 ' then trends to S.-w. islet . ( 5 ) Sextant A. South extreme Tree islet . Near point , South - west islet 111 ° 0 ' Flag A 5 ° 0 ' Bight in this islet in 35 0 --- do . near .
... islet then trends to Flag A " " ( Trend of reef near , 40 ° 0 ' then trends to S.-w. islet . ( 5 ) Sextant A. South extreme Tree islet . Near point , South - west islet 111 ° 0 ' Flag A 5 ° 0 ' Bight in this islet in 35 0 --- do . near .
Page 280
... islet 142 30 " " The Cutter then weighs anchor and proceeds to C , a position 2 miles north ( true ) of the Ship at B , and anchors with Flagstaff on hill & North islet . From Cutter anchored at C in 7 fathoms , broken shells . South ...
... islet 142 30 " " The Cutter then weighs anchor and proceeds to C , a position 2 miles north ( true ) of the Ship at B , and anchors with Flagstaff on hill & North islet . From Cutter anchored at C in 7 fathoms , broken shells . South ...
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A Treatise on Marine Surveying: Prepared for the Use of Younger Naval ... J. L. Robinson No preview available - 2018 |
Common terms and phrases
barometer base line beach bearing and distance Buoy centre Chron chronometer Cliff coast computed construction correct daily rate difference divided Draw equal error extend from lat fathoms feet fixed Flagstaff harbour height Hence High island high water horizontal inches instrument interval islet known latitude Least Reading length Light Lighthouse longitude Lough Foyle low water lunitidal intervals marked mean measured Mercator's chart Meridian Distance method miles moon natural scale nautical mile Neap object Observatory observed angles Ordnance Survey parallel peak plane Project Protract radius reef represent Result Rock awash Royal Naval College sand scale of chords screw seconds segment sextant shew ship Ship's shoal shore side Signal hill soundings Spring Tides station straight line Sun's survey taken telescope temperature Theodolite tidal tide gauge Tide Tables transverse distance triangle true bearing Variation vernier vernier circle vertical Windmill yards zero
Popular passages
Page 53 - ... the three angles of a triangle are together equal to two right angles, although it is not known to all.
Page iii - Robinson. — TREATISE ON MARINE SURVEYING. Prepared for the use of younger Naval Officers. With Questions for Examinations and Exercises principally from the Papers of the Royal Naval College. With the results. By Rev. JOHN L. ROBINSON, Chaplain and Instructor in the Royal Naval College, Greenwich. With Illustrations. Crown 8vo.
Page 180 - It remains to be noticed that the direction of strong winds, as well as the varying pressure of the atmosphere, considerably affect both the times and the heights of high water. Thus in the North Sea a strong NNW gale and a low barometer raise the surface 2 or 3 feet higher...
Page 166 - The sphere of the attractive virtue which is in the moon extends as far as the earth, and entices up the waters ; but as the moon flies rapidly across the zenith, and the waters cannot follow so quickly, a flow of the ocean is occasioned in the torrid zone towards the westward.
Page 145 - Shew that, if each of the angles of a spherical triangle, whose sides are small when compared with the radius of the sphere, be diminished by one-third of the spherical excess, the triangle may be solved as a plane triangle whose sides are equal to the sides of the spherical triangle, and whose angles are these reduced angles.
Page xvi - Nautical Surveying,— Use of Charts ; Rating of Chronometers ; Determination of Meridian Distance ; Selection and Measurement of a Base Line ; Determination of Latitude, Longitude, and True Bearing ; Triangulation ; Levelling ; Soundings: Fixing Positions: Tide Gauge; Establishment oí the Port ..... 12. Instruments. — Construction and Use of Marine Barometer, Sextant. Artificial Horizon, Azimuth Compass, Theodolite, and Level . .
Page 15 - ... and strong rippling all round the edge, by which the bank may generally be discovered. Beyond this point the streams unite and flow on towards Howth and Lambay, growing gradually weaker as they proceed, until they ultimately expend themselves in a large space of still water situated between the Isle of Man and Carlingford.
Page 53 - The angle at the centre of a circle is double the angle at the circumference on the same arc.
Page 53 - The opposite angles of a quadrilateral inscribed in a circle are together equal to two right angles, with converse.
Page 189 - Portland, there are what are termed the first and sccunil high waters. This double high water is probably caused by the tidal stream at Spithead, for, as long as that stream runs strong to the westward the tide is kept up in Southampton water, and there is no fall of consequence until the stream begins to slack at Spithead, but when the stream makes to the eastward at Spithead the water falls rapidly at Southampton. After low water, the...