Celestial and 'Terrestrial Globes. 273

side of the strong brass meridian, then thepoles and parallel circles upon the globewill, without sensible error, correspond withthose in the heavens, and each point, king-dom, and state, will be turned towards thereal one which it represents.

If you have no meridian line, then theday of the month being known, find thefun’s declination as before instructed, whichwill direct you to the parallel of the day,amongst the polar parallels, reckoned fromeither pole towards the polar circle 3 whichyou are to remember.

Set the globe upon your horizontal planein the fun-fhine, and put it nearly northand south by the mariner’s compass, it beingfirst elevated to the latitude of the place,and the place itself brought under the gra-duated side of the strong brass meridian:then move the frame and globe together,till the shade of extuberancy, or term ofillumination, just touches the polar paral-lel for the day, and the globe will be fettledas before; and if accurately performed,the variation of the magnetical needle willbe shewn by the degree to which it pointsin the compass box.

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