1878 · Motion Study · Werk 237 von 1.871

Muybridge's battery of twelve cameras ranged along the Palo Alto track: a long low timber shed open toward the course, twelve box cameras side by side inside it with their lenses in a row facing the track, opposite them a wall of white planks marked with vertical lines, trip wires stretched across the course at ground level and struck by the sulky wheel, a trotting horse harnessed to a light two-wheeled sulky with its driver mid stride before the white wall.