72 'Description and Use os the

is its longitude from London, in degrees,and minutes, or that hour and minute is itslongitude expressed in time.

Or if we bring the place to the strongbrass meridian, that will cut the equator inthe longitude as before.

Thus Boston in New England is about70 1 degrees west of London ; CapeComorin in the East Indies 282°. westof London or the longitude of the firstplace expressed in time is 4I1. 42 min. ofthe second 18 h. 48 min.

143. T he method of reckoning longitudealways westward from the first meridian ismost natural, because it is agreeable to thereal motion of the earth;

But the common method is to reckon ithalf round the globe eastward, and the otherhalf westward from the first meridian, end-ing either way at 180 degrees.

Thus Cape Comorin is 78 degrees eastof London.

Note, The numbers nearest the equatorincrease westward from the meridian ofLondon quite round the globe to 360,over which another set of numbers is en-graved, which increase the contrary way, by

which