Note 43 — Chapter IV · Thomas Newcomen—The Atmospheric Engine.

Scogging is a north country word, meaning skulking one’s work, from which probably the boy gave the contrivance its name. Potter, however, grew up to be a highly-skilled workman. He went abroad about the year 1720, and erected an engine at a mine in Hungary, described by Leupold in his ‘Theatrum Machinarum,’ with many encomiums upon Potter, who was considered the inventor.