Arrangement of Specimens
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Hippolyte Bayard
French, Paris, about 1842
Direct positive print
10 15/16 x 8 1/2 in.

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This image is an early example of a scientific fundamental of photography--the light sensitive nature of certain chemical compounds. Without the use of a camera or lens, Hippolyte Bayard carefully arranged a delicate selection of laces and flora on a sheet of paper that was made sensitive to light with a combination of iron salts that produced a blue-toned cyanotype when developed. The sheet of sensitized paper with the objects placed upon it is exposed to sunlight in order to make a camera-less photogenic drawing.

The opacity of the object blocks the light in relation to its density, thus creating a silhouette of the object on the paper. Because the process was relatively uncomplicated, cyanotypes provided a quick method of recording easily recognizable shapes and patterns. Bayard filled the entire sheet of paper, creating a catalog of specimens that reveals the basic structure of each flower, leaf, feather, and scrap of fabric.