The art of dialling : performed geometrically ... arthmetically ... instrumentally ... (1700)
Leybourn, William, 1626-1716 · London : T. Braddyll · leaf 34
ld in E, through which point the Parallel of the Suns de¬ clination for that day muft be delcribed, and for the drawing of it, you have three Points D, E and C, whole Centre will always be in the Axis of the World S QP extended, and may be found by the former Sixth Pro¬ blems Fifthly, Obferve in… … Sixthly, By the forementioned 6th. Probl. draw an Hour- J J , - circle
