A page from John Herschel 's (1792-1871) copybook that accompanied his talk to the Royal Society of London on March 15, 1839. The book contains photographs by Herschel from 1839 and, on this page, a sketch of his father, William Herschel's (1738-1822) reflecting telescope drawn by 'J.H.' in 1888 in reference to Herschel's original photogaph that had faded. The various annotations over the pages show that Herschel's notes were added to over the years. The notes at the bottom of the right hand side page describe the deterioration of the original photograph of William Herschel's telescope until 1922. Herschel became increasingly interested photography and was a strong and vocal proponent for its use in astronomy, believing there should be no conflict between science and art.
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