
2. The albumen print was the first commercially exploitable method of producing a photographic print.
The main "ingredient" of the albumen process is found in egg whites.
The albumen print died out in the mid-19th century

3. A stereograph is a picture that depicts its subject so that it appears solid. The stereograph was popular between 1854 and 1856.

4. A carte de viste was a type of small photograph that was patented in Paris. Carte de viste's were used for greeting cards.

5. Mathew Brady and Alexander Gardener were booth 19th century photographers. They were both notable for photography American Civil War scenes.