Old clocks and watches & their makers : being an historical and descriptive account of the different styles of clocks and watches of the past, in England and abroad, to which is added a list of nearly twelve thousand makers (1922)
Britten, F. J. (Frederick James), 1843-1913, Britten, Annie · London : E. & F. N. Spon · leaf 24
he spotwhere the dial is situated, d the corresponding latitude, p p thepoles, and E the centre of the earth. A dial prepared for any particular place is useless for another placein a different latitude, with the exception that a horizontal dial fora certain latitude will be a vertical dial for a… … Fig. 3. Horizontal Sun-Dial.—To set out a horizontal dial, first drawtwo hues parallel to each other, at a distance equal to the thickness ofthe gnomon which is to cast the shadow. Next, draw a hue at rightangles to these, the extremities of which will indicate respectively thehours of six in the…
Clocks and watches · Clock and watch makers
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