References and Notes
- Gernsheim , Helmut . 1956 . L. J. M. Daguerre. The History of the Diorama and the Daguerreotype , London : Seeker & Warburg . second revised edition, Dover, New York (1968)
- Arnold , H. J. P. 1977 . Henry Fox Talbot London : Hutchinson Benham Ltd, . published by
- Gill , Arthur . 1978 . Sage of Lacock . History of Photography , 2 ( 2 ) April : 173 – 174 .