Until Autumn 1885: From spring 1884 to Autumn 1885, Eadweard Muybridge and his team produced over 100,000 images,[1] mostly at an outdoor studio on the grounds of the University of Pennsylvania's northeast corner of 36th and Pine, recording the motions of animals from the veterinary hospital, and from humans: University professors, students, athletes, Blockley Almshouse patients, and local residents.[2]Thomas Eakins worked with him briefly, although the painter preferred working with multiple exposures on a single negative, whereas Muybridge preferred capturing motion through the use of multiple cameras.[3] Since 1879, Muybridge was working on the zoöpraxiscope (animal action viewer), a projection device that created cyclical animations of animal movement, incorporating technologies from photography, the magic lantern and the zoetrope. The photographer created painted sequences on the glass zoöpraxiscope discs that were based on his motion-study photographs to produce an early form of animation. Muybridge used these to illustrate his lectures that were presented to audiences in the U.S. and Europe, marking his contribution to photography and film in relation to the "experience of time within modernity."[4][5]