Sir David Brewster, K.G., President of the British Association [for the Advancement of Science], 1850. 'The discoveries of Sir David Brewster range from the kaleidoscope to the law of the angle of polarisatioin, the physical laws of metallic reflection, and the optical properties of crystals ; and our philosopher is the author of an immense number of facts and practical applications in every branch of optics. The accompanying Portrait is engraved from a beautifully executed Talbotype, by Messrs. Henneman and Malone, of Regent-street'. From "Illustrated London News", 1850.
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