Title: Barlow, Peter: [on the Camera Lucida and Camera Obscura]. In: A new mathematical and philosophical dictionary, comprising an explanation of the terms and principles of pure and mixed mathematics, and such branches of natural philosophy as are susceptible of mathematical investigation. With historical sketches of the rise, progress and present state of the several departments of theses sciences, and an account of the discoveries and writings of the most celebrated authors, both ancient and modern. London 1814.


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