English mathematician ISAAC BARROW (1630-1677), one of the inventors of calculus, had a profound impact on his student, Isaac Newton. Here, in this 1916 volume, British historian of mathematics JAMES MARK CHILD translates from the original Latin Barrow's masterpiece, Lectiones Opticae et Geometricae, his lectures on mathematics, demonstrating Barrow's essential role in the development of the higher math. Complete with Child's comprehensive introduction to Barrow's life and notes and discussion on his work, this new edition of an important but hard-to-find book will intrigue students of the history of science and math lovers alike,