ABSTRACT
The application of the camera obscura, and the fixing of the image so obtained, define the commencement of the art of photography. If photography were popular before the introduction of the dry gelatino-bromide plates, it has since become a hundred-fold more so. The comparative cheapness and convenience of Talbot’s process, and especially the facilities which it afforded for the multiplication of proofs, gave an immense impulse to photographic art. A solution of gelatine is coloured by the addition of Indian ink, or any other pigment which will give the desired tone. This solution is spread over sheets of paper which are then dried. The dry plate processes have given an immense impulse to landscape photography, and travellers have been able to bring back authentic representations of the scenery and inhabitants from every part of the globe.
