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In the 19th century, France said, new photographic methods emerged nearly every year: from daguerreotype to collotype, from paper negatives to glass negatives, from sheet film to roll film.

The landscape photographers of America are included as well, with representative photographs by Carleton Watkins, and Eadweard Muybridge, a photographer of animals in motion, represented by a collotype formerly in the Corcoran Collection.

The collotype process then became his hope and refuge, but that also was in its infancy, and not practised in England.

The drawings are mostly scaled for the half, and the measurement, in inches, will be found by dots on the top of the collotypes, and by a marked line on the pattern pages.

It was a common collotype reproduction of a stodgy night-effect, a full moon in a black-leaded sky with reflections in water to match—price perhaps five shillings.