By James Gillray.
Below caption title: 'Definitions from Euclid. Def: Ist B: 4th. A sphere, is a figure bounded by a convex surface; it is the most perfect of all forms; its properties are generated from its centre; and it possesses a larger area than any other figure. - Def: 2d B: Ist A plane, is a perfectly even & regular Surface, it is the most simple of all figures ; it has neither the properties of length or of breadth ; and when applied ever so closely to a sphere, can only touch its superficies, without being able to enter it - Vide. Euclid, illustrated; by the Honble Mrs Circumference.'
Print shows a thin and linear Pitt beside a spherical Mrs. Hobart. She stands on a rectangular platform on castors, her circumference resting against Pitt's post-like person. She looks up at him expectantly; he stares over her head with a pained expression.