We referred in our notes of last week regarding the photographic portrait of Charles Dickens, and the veteran photographer, J. E. Mayall, writes:—“I note an interesting article you have written in the PHOTOGRAPHIC NEWS on * Charles Dickens.' I took him in 1851 for the stereoscope, and made him a present of my views of the Louvre at Paris. He wrote me a characteristic answer of thanks: 'I am deep in “Great Expectations,” but I run away every few minutes to look at myself in the stereoscope you have sent me. I begin to think I am not as good as I seem; but what a surprise did that little square box contain a series of transparencies of my beloved Louvre. How did you arrive at the notion that this is a passion?' I think Stone (Frank Stone) is in the secret, and let it out. Never mind; Bells in Regent will ring long and long to have fortunes told by the Photo-Magician, &c.”