Celestial and 'Terrestrial Globes. 165

PROBLEM XXXIX.

To shew at one view upon the ter-restrial globe for any given place,the sun’s meridian altitude, hisamplitude, or point of the com-pass, on which he rises and setsevery day in the year.

257. Rectify the globe to the latitude ofthe given place, art. 189. bring that place tothe strong brass meridian, and set the horaryindex to XII, screw the quadrant of altitudeto the zenith of the horizon, and bring it tothe brass meridian, you will then at one viewfee the fun’s meridian altitude on every de-gree of the fun’s declination for the wholeyear, cut by the graduated edge of the qua-drant of altitude, on the dotted parallels; thesedotted parallels at the fame instant also cutthe edge of the broad paper circle now re-presenting the horizon, in the point of thecompass or amplitude, on which the fun isseen to rise on the east, or to set on the weststde of the horizon, for every degree of de-clination throughout the year.

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