Coordinates:Echard

For the Longitude and Latitude of Places, I must acquaint the Reader, that I have calculated 'em all according to F. de Wits newest Maps; so that by the help of those Maps, and Place may be found with great ease and quickness: sometimes perhaps I may have mistaken Minute or two. The first Meridian, according to him, begins at Teneriff, one of the Canary Islands; but in Sanson's and Berry's Maps, the first Meridian is made at Ferro, two Degrees more West than Teneriff: So that if any Place be sought for in their Maps, there must be two Degrees allowed in the Longitude; so for Instance, what is there 20 and 30, must be reckoned as 18 and 28.

If this Book should fall into the Hands of some that do not know what Longitude and Latitude is, this is to let 'em know, that in all Maps, the top is the North, the bottom the South, the right hand the East, and the left the West; (or at least should be so) the Distance from the West to the East, is Longitude; and from the South to North, is Latitude; all which may be easily seen by the Figures that are in the Sides, Tops and Bottoms of every Map.