American horological journal, devoted to practical horology (1869)
Miller, George B · New York, G. B. Miller · leaf 65
on secured to thepost and to the edge of the dial. Horizontal Dial is one whose plane liesparallel to the horizon, and is the most com-mon and most useful—the sun remaining onit from sunrise till sunset. The form of theplane on which you draw a dial is of no con-sequence—whether square, round, or… … Draw three concentric circles as a marginto contain the figures ; draw the line A C,which is the substilar or 12 oclock line (butnot the meridian line on all dials), in which AMERICAN HOROLOGICAL JOURNAL. 57 line make choice of a point as at 0, a littleabove the centre (by which means you…
Clocks and watches
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