Use of the magnetic compass in map making, 1643. Diagram of the use of the compass by cartographers and surveyors. 'Bor' (Borealis) is north and 'Aust' (Australis) is south. From Magnes: sive de arte magnetica by Athanasius Kircher. (Rome, 1643).
Pixel Dimensions (W x H) : 3485x5013
File Size : 51,183kb