Note 42 — PAPER 27
Reading edition
Charles-Nicholas Peaucellier, "Note sur une question de geométrie de compas," Nouvelles Annales de mathématiques, 1873, ser. 2, vol. 12, pp. 71-78. A sketch of Mannheim's work is in Florian Cajori, A History of the Logarithmic Slide Rule, New York, about 1910, reprinted in String Figures and Other Monographs, New York, Chelsea Publishing Company, 1960.