The geometrical lectures of Isaac Barrow
An English translation by J. M. Child of Isaac Barrow's 1670 Lectiones Geometricae, published in 1916 by Open Court in Chicago and London for mathematicians and historians of calculus. The 42 figures are line diagrams of curves, tangents, ordinates and lettered construction points drawn in thin black rule on cream paper, useful as geometric line motifs, grid fragments and serif letter labels.
