Technical Literature concerning the invention of Photography 1839/40

7 volumes of Dingler´s “Polytechnisches Journal” published by Cotta in Stuttgart. The lot includes volumes 71, 72, 73, 74 dating from 1839, volumes 77, 78 from 1840 and volume 96 from 1845, each about 460 pages, 14x22cm, hardbound in marbled paper with gilt-stamped leather spine, pasted into the rear cover of each book are up to 6 folded leaflets with lithographed technical illustrations. The books are in good condition except that the spine of volume 71 is missing. The volumes are filled with countless descriptions of technical achievements (in German) including numerous articles about the invention of photography by Daguerre and Fox Talbot and, amongst other things, the translation of Dominique Arago's famous speech, several descriptions of Daguerre´s invention and a very detailed illustration of his apparatus. A rich source for everyone interested in the technical aspects of early photography. The complete list of the photo-related articles can be provided upon request.