English: Explanation of the author's Surmise, that the Poles are no colder than ten Degrees on this Side of them, on Account of the Spheroidical Figure of the Earth.

The author's "explanation" is this:

Any Rays of the Sun A, which fall upon a Place situated ten Degrees on our Side of the Pole B, and Rays which fall on the Pole itself, do not make so large an Angle, as they would if the Form of the Earth was a Sphere; for if we extend the two Points B and C so far as to make a compleat Sphere, we must be obliged likewise to move the Line D along with it to the Point E, which would make a larger Angle, and in that Case the Surface of the Earth at the Pole B would be more inclined to the Plain of the Ecliptic than it is, and consequently it would be colder, as the Cause of Heat and Cold in different Parts of the Globe is owing to the Inclination of the Poles to the Plain of the Ecliptic.