Muybridge, an Englishman, made exhaustive photographic investigations of consecutive animal movements while he was in America. More than 100,000 photographs were embodied in his Animal locomotion. An electro-photographic investigation of consecutive phases of animal movements, 1872-85. Philadelphia, 1887. The great cost of producing this work of 11 folio volumes with 781 photo-engravings restricted its sale to a very few copies and the above two books are abridgements. This pioneer study of serial photography demonstrated the possibilities of motion pictures and foreshadowed modern cinematography. Reprinted New York, 1955. All 781 plates from the 1887 Animal locomotion were republished, New York, Dover, 1979, with introduction by A. Mozley.