American horological journal, devoted to practical horology (1869)
Miller, George B · New York, G. B. Miller · leaf 59
of the equinoxes. In Fig. 3, the 1 also de»Fig. 3. … notes the same point as in Fig. 2; the truelongitude is then measured by the angle 1, S,P, the mean longitude by 2, C, M—to find thereal place we have recourse to the equationof the centre. By inspecting Fig. 3 it will beseen that the two longitudes (the true andmean) can coincide in two points…
Clocks and watches
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![An illustration from A treatise describing and explaining the construction and use of new celestial and terrestial globes; designed to illustrate ... the phoenomena [sic] of the earth and heavens, and to shew the correspondence of the two spheres. With a great variety of astronomical and geographical problems occasionally interspersed (1766)](https://img.insideoutlibrary.com/img/200/ia-treatisedescribi00adam-116-8.webp)
