M., passing through more than twelve degrees of longitude or 750 m.
Treating the earth as a sphere, the meridians of longitude are all great circles.
And now that at the proper time and place, after so long and wide a preliminary cruise, Ahab,--all other whaling waters swept--seemed to have chased his foe into an ocean-fold, to slay him the more securely there; now, that he found himself hard by the very latitude and longitude where his tormenting wound had been inflicted; now that a vessel had been spoken which on the very day preceding had actually encountered Moby Dick;--and now that all his successive meetings with various ships contrastingly concurred to show the demoniac indifference with which the white whale tore his hunters, whether sinning or sinned against; now it was that there lurked a something in the old man's eyes, which it was hardly sufferable for feeble souls to see.
It then followed this line of longitude to its intersection with N.
Arago was elected a member of the Board of Longitude immediately afterwards, and contributed to each of its Annuals, for about twenty-two years, important scientific notices on astronomy and meteorology and occasionally on civil engineering, as well as interesting memoirs of members of the Academy.
St Petersburg, again, is connected with Greenwich by European systems of triangulation; and the Greenwich meridian is adopted by Russia as the zero for all her longitude values.
Gulf of Gabes I o g Lemg.W.of Greenwicir 0 Longitude East of Greenwich B 4 D very complete sequence of formations from the Lias to those of recent date.
The arid nature of the trans-Caspian deserts has proved an insuperable obstacle to those rigorous methods of geodetic survey which distinguish Russian methods in Europe, so that Russian geography in central Asia is dependent on other means than that of direct measurement for the co-ordinate values in latitude and longitude for any given point.
The mean motion of the moon round the earth is then invariable, the longitude containing no inequalities of longer period than that of the moon's node, 18.6 y.
The correct relations in the length of degrees of latitude and longitude are maintained in the first case along the latitude of Thule and the equator, in the second along the parallel of Agisymba, the equator and the parallels of Meroe, Syene and Thule.