Extancy

[W]hereas in ſmall fragments or plates, the Ice, though it ſink not to the bottom of the water, will oftentimes ſink so low in it, as ſcarce to leave any part evidently extant above the ſurface of the water, in vaſt quantities of Ice, that extancy is ſometimes ſo conſpicuous, that Navigators in their Voyages to Iſland, Greenland, and other frozen Regions, complain of meeting with lumps, or rather floating rocks of Ice, as high as their main Maſts.

Moreover, a perfect Medal has its Profile and out-ſtroaks ſharp (Nummus aſper) and by no means rugged; the Figures clean and well poliſh'd; the Contours neatly trimm'd, and exactly round and carefully preſerv'd; that the Extancy and Relievos correſpond with the Ingraving, and have not ſuffer'd in Percuſſion; in all which, there is a certain Spirit of Antiquity and Excellency to be diſcern'd in Antient Medals almoſt inimitable.