This classic work on optics was published in the late 17th century by David Gregory, a Scottish mathematician and astronomer, and his son James Gregory, who invented the reflecting telescope. The book includes contributions from Sir Isaac Newton and provides a comprehensive overview of the principles of catoptrics (the study of mirrors) and dioptrics (the study of lenses). This book is a must-read for anyone interested in the history of optics and the development of modern physics.

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