Richard Beard Patent: To Richard Beard. of Earl-street, Blackfriars, Gent., for improvements in the means of obtaining likenesses 1842, 10 March (sealed) 1843 (publication) Magazine page Google Books
80
LL/34397
Henry Hopley White (author) "the Relations and Harmonies of Colour" by Henry Hopley White, Esq. 1859 Book page Google Books