The art of dialling : performed geometrically ... arthmetically ... instrumentally ... (1700)
Leybourn, William, 1626-1716 · London : T. Braddyll · leaf 55
Geometrical Dialling, m An Ere ft Direft North Plain . … 4 in the Afternoon, but it is beft to put them on, as in the Figure above, that thereby you may know how much it is paft 7 in the Morning, and how much it wants of 5 in the Afternoon. - CHAP. VI. Hovp to draw the Hour-lines upon an Ere<ft, Direct, Eaft2 or Weft Plain. I Call that an Eafi or Wefi…
