The use of the sector, in these following parts of the mathematicks, viz. geometry, trigonometry, navigation, astronomy, dialing, measuring, altimetria, longimetria, surveyingalso the art of dialing, instrumentally performed by a new portable instrument called the horological sector, by which hour-lines may be drawn on all manner of planes however situated, in any latitude, by which instrument may be found the hour of the day, and the sun's azimuth universally
Printed for the author near the Marlborough's Head in Hounsditch, and sold by R. Glynne, at the Atlas and Herculus in Cheapside near the corner of Friday-Street, and E. Culpeper, at the Cross-dagers in Middle Moore-Fields, mathematical instrument-makers1713-01-01
