Celestial and Terrestrial Globes. 317

suns distance from the vertex, when dueeast and west, may be found by inspection,counting from © to K upon the quadrant,70 0 o' : the measure of the angle 0 P Kis also obtained upon the equator, countingfrom that point where it is crossed by thequadrant of altitude, to its intersection withthe graduated side of the strong brass meri-dian, 77 0 53', in time 5 h. 9 m. fromnoon, which is 51 min. past 6 in the morn-ing ; or at 9 min. past 5 in the afternoon,when the fun is due east or west.

The fun’s distance 70° o 1 from the ver-tex as found above, when due east or westsubtracted from 90 degrees, leaves 20 deg,which is its altitude above the horizon ateither of these times, for © v, © w arequadrants, from which if we take © K inthe first, or 0 A in the second, it is K v,in one and A w in the other, equal to thefun’s height.

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