D. B. Spooner.
H. B. Spooner.
| George W. Adams Chas. H. Codman. | } | Witnesses. |
Patented August 5, 1856.
THE COLLODIO-ALBUMEN PROCESS.
COLLODIO-ALBUMEN PROCESS.
This is a process, invented by Dr. Taupenot, for obtaining negatives on glass, which bids fair to outrival all others, being easy of manipulation, and giving results of the most exquisite minutiæ and beauty. Glass plates, when prepared and excited by this process, may be kept at least a fortnight before being developed, and these plates when exposed in the frame may be developed immediately, or kept for days before commencing this operation. Indeed it is quite possible to prepare and excite a number of plates before leaving home to go on a tour of twelve or fourteen days; to expose the plates at any time or place during the journey, and bring them home to be developed.
The manipulation may be said to consist of nine distinct operations.