Celejlial and Terrestrial Globes. 319

PROBLEM LXXXII.

Given the sun’s distance from thepole 74 0 27', the latitude of theplace 51 0 32', and the fun’s dis-tance from the vertex by obser-vation, 46° 11

To find the time of the day whenthat observation was made, andthe azimuth upon which the funwas at that time.

350. Fig. 35. elevate P, the pole of theglobe to 15 0 33' the complement of the fun’sdistance from the pole; bring the moveablemeridian to the vertex of London, and Hidethe center of the artificial horizon to thatpoint: then screw the quadrant to G thezenith of the illuminated disk, and bringits graduated edge to London; and movethe globe and quadrant, that the vertex maycut the quadrant at 46 0 11the ' observeddistance counted from G to X; 'and an ob-lique angled triangle G X P will be formedupon the globe, in which we have three

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