Animal Locomotion. An Electrophotographic Investigation of Consecutive Phases of Animal Movements. 1872-1885. Bound volume with a total of 21 collotypes on plates. Each circa 46 x 60 cm. Each with printed caption, number and Muybridge's copyright on plate. Title page with dedication by Muybridge to "Sir Fredk Leighton Baron P.R.A. with the homage of the author June 1889" and later dedication by Lord Leighton "To Linley Sambourne from an old friend. July 22, 1896" in pencil. Bound in half morocco, cloth-covered album (corners rubbed, some scratches) gilt morocco cover label "Animal Locomotion. By Eadweard Muybridge. 1872-1885. Plates. University of Pennsylvania". University of Pennsylvania, Philadelphia, 1887.