Celestial and ‘Terrestrial Globes. 307

The angle D H P, which is the angle thatthe meridian passing by the fun makeswith the ecliptic^

We obtain the measure of the first, bynumbering the degrees upon the equator,between the strong brass, meridian, and thatwhich passes through «, which are equalto 50° 12', its complement i 39° 48' is thefun’s right ascension, which is that angle atthe pole formed by the proper meridianS P with the meridian ^ P.

Note, This arch of the equator couldnot be represented in fig. 34. it being underthe broad paper circle ; but the reader willsee it plainly when the globe is thus recti-fied.

The quantity of the second postulatum,which is the fun’s distance from the nearestpole, is found by inspection, 74 0 27' uponthe arch P 0 of that meridian passing thro'its complement P i, equal to 15 0 33',is the distance of the north pole from theedge of the illuminated disc, representedupon the globe, as in fig.'.3 4. by the semi-circle feg, the black line fe being thequadrant of altitude, and the Other dottedX 2 half