Paris: J. Dumaine, 1866. First edition. 8vo., [vi], 75 p., 2 large folded plates, including a panoramic plan of the polygon at Versailles. Wrappers printed in facsimile. Short tape repair to the blank reverse of the final folding plate. Housed in a new card pamphlet case with printed paper labels. Very good. Item #53212

As the title suggests, this is a treatise on the photographic applications used in conducting surveys by the military. The author acknowledges his debt to A. Chevallier, for his ingenious adaptation of a photographic camera to make a surveying plane-table, an essential tool in topographic mapping. With this, he was able to achieve a panoramic image, without overlapping or distortions, by using an objective with a rotary movement and collodion plate affixed to "a moving vertical wheel articulated at right angles, with a fixed horizontal wheel, the teeth of which force the vertical wheel to terminate a complete revolution upon itself at the precise moment when its horizontal axis has finished its tour of the horizon."

Roosens and Salu No. 7037.

Price: $150.00