Mix'd mathematics
NAVIGATION, or the Consideration of SAILING ;
in Ship, Frigate, Bark, &c.
Parts thereof, Mast, Anchor, Sails, Yards, Cordage, Capstan, Rudder, Deck, &c.
Their Course, Rhumb, &c.
shewn by Compass, Needle, Variation, &c.
Directed by Steerage, Current, &c.
Distance or Reckoning, by Log, Observation, Longitude, Latitude, &c.
Taken by Fore-staff. Back-staff, Astrolabe, Nocturnal. Sinical Quadrant, &c.
Wrought by Gunter, Chart, Mercator, Traverse, &c.
The Operations of Sounding, Weighing, Careening. Signals, Buoy, &c.

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1 ABASING Ephraim Chambers 573