Drawing instruments including perspective aids such as Mr. Peacock's delineator and Miss Maria Edgeworth's delineator; Jesse Ramsden's optigraph improved by Thomas Jones and Dr. William Hyde Wollaston's camera lucida. Copperplate engraving by Wilson Lowry after a drawing by John Farey Jr. from Abraham Rees' Cyclopedia or Universal Dictionary of Arts; Sciences and Literature; Longman; Hurst; Rees; Orme and Brown; London; 1812.