illustrated by a new mode of engraved diagrams and figures ... the whole ... adapted for the use of seamen . ... The navigate/ naturally consult those tables in preference to any general rule, where accuracy is required. ... The plancts are also found by the same mcthod, having the time they pass the meridian from the Nautical Almanac Diagrams showing the effect of the dip of the horizon, refraction , andanbsp;...
|Title||:||A new treatise on the practice of navigation at sea ...|