. A new treatise on the practice of navigation at sea : containing all the details necessary to enable the mariner to become a good practical navigator. . the direetlon of the Ships track, and by means of the latter her distance run is measured. The Log Ship is a small triangular-shaped piece of wood, one side being loaded so as to cause it to •wimapright; sometimes a funnel-shaped bag is used instead. This is attached to the line in such a mannerthat when the glass has run out, and the line checked, one of the corners (being fastened by a peg of wood•r bone), is released, or the bag reversed,
. A new treatise on the practice of navigation at sea : containing all the details necessary to enable the mariner to become a good practical navigator. . the direetlon of the Ships track, and by means of the latter her distance run is measured. The Log Ship is a small triangular-shaped piece of wood, one side being loaded so as to cause it to •wimapright; sometimes a funnel-shaped bag is used instead. This is attached to the line in such a mannerthat when the glass has run out, and the line checked, one of the corners (being fastened by a peg of wood•r bone), is released, or the bag reversed, which allows it to be easily hauled on board again. At 12 or lAffcthoniB from the Log Ship the line is marked with a strip of Rag ; this is called the Stray line, whichenables the Log to go clear of the Ship before the time is counted, or the Glass turned. From this marhthe line is measured and divided into Knota and Half Knots, and marked at each Knot with a bit of stringwith the number of Knots upon it. The length of a Knot depends upon the number of seconds which thi Glass measuren. [ OF NAVIGATION. Fic. 5. THE MARINERS As tLe Ship8 Course is sometimes expressed in Points and sometimes in Degrees, the foDowiiig Tabi»ill be found useful for reference. 1 ROBTH KAST. NORTH AND WEST. SOOTH AND EAST. (ODTB AND WEST. POINTS. D. H. ■. North. ♦ f E. North. N. i i W. N j W. Soiiih. S. i JE. South. S. i WS. J W. 0 it 2 48 455 37 308 36 IS N. by E. N. by E. i E,N. by by E. } E. N. bv W. N bv W. J- \ by W. by W. i W. S. byE. S. byE. byE. byE j E. S. by W. S. by W. i by W. i bv W. f W. 1 1*U1* 11 15 0014 3 4516 53 3019 41 1522 30 0025 18 4528 7 3030 56 15 N. N. K. N. N. E. i N. E. N E. f E. N. N. VV. N. N. W. 1 N. \V. i N. W. i W. S. S. E. S. S. S. E. S. E.»E. S. s. w. s. s. W i S. W. i s. W. JW. it 2* 2» N. E. by N. N. E. f N. N. E. i
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectnavigat, bookyear1902
