Celestial and ‘Terrestrial Globes, z 15

and suppose the first point of Aries, on theinvesting globe, to be placed upon thefirst point of Aries on the terrestrial globe,(which point is in the meridian of London)they will then represent that situation of theheavens and the earth, we have been justdescribing, on that instant, when the firstpoint of Aries is upon the meridian; andthen every star on the celestial will lie uponevery particular place of the terrestrial globe,to which it is a correspondent; each star willthen have the degree of its right ascensiondirectly upon the corresponding degree ofterrestrial longitude j their declination willalso be the same with the latitude of thoseplaces upon which they lie.

Now if the reader conceives the celestialinvesting globe to be fixed, and the ter-restrial globe to be gradually turned fromwest to east, he will readily understand, asthe meridian of London passes from onedegree to another under the investing sphere,that every star thereon becomes a corre-spondent to another place upon the earth;and so on, until the earth has completed onediurnal revolution, or till all the stars, byth^ir apparent daily motion, have passed overP 4 . every