Etienne-Jules Marey: A Passion for the Trace

"Etienne-Jules Marey (1830-1904), the brilliant French physiologist, developed photographic techniques for the study of animal locomotion that directly influenced the invention of cinematography. . . . Dagognet, a philosopher, focuses on the meaning of Marey's work, on being able to capture a trace of the usually invisible world of motion, for aesthetics and science."-the publisher.