Water, earth and air

[nablator]

Furthermore the Oresme illustration is painted in a way to make clear that this is not a division of geographical continents. It is an elemental division of water, earth, and air. And this appears to be a fairly standard sort of representation, with water taking up the bottom half, air to the left and earth to the right in the upper part.

The division between water and earth is clear. The other manuscript, BNF Fr. 1082, of the same "Du ciel et du monde" a translation by Oresme of Aristote's work, has the same division in a different illustration : You are not allowed to view links. Register or Login to view.

According to the analysis here: You are not allowed to view links. Register or Login to view.
page 50 : "dans le quart supérieur gauche un monde habitable inconnu, soit qu'il soit séparé de la terre habitée, soit qu'il en constitue le prolongement inexploré"
(in the upper-left quadrant an unknown habitable world, either separated from the inhabited area or its unexplored extension.)

Maybe the disorganized green pattern represents wild vegetation?

BTW,  I noticed the number of undulations is the same : 43.