Kenealy, Ahmed John, 1854- [from old catalog] · New York, London, Outing publishing co · leaf 151
ain signs and abbrevia-tions used on charts which are easilycomprehended, such as hrd for hard, rkyfor rocky, etc. Lighthouses and light-ships are clearly marked, and shoals,rocks and other obstructions to naviga-tion are plainly defined. All the mar-ginal notes on the charts should bemade familiar… … A Fig. 6.The position of a vessel may be ascer-tained simply and accurately by cross-bearings. Suppose you are in a ship ata in Fig. 6. The point with the light- CHARTS. 153 house on it bears correct magnetic N. byW., and the point with the tree on it E.by N. You lay the parallel rules overthe…
Sailing · Boats and boating
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