Left without Stanford's backing, Muybridge scrambled to find a patron. The
University of Pennsylvania finally made an offer, and in 1883,
Muybridge began a study of human and animal movement that remains
unparalleled to this day.


Working out of an
elaborate outdoor studio on campus, Muybridge used a new dry plate
process, natural light, and an ingenious assortment of camera positions
and devices to capture crisp images of both humans and animals, showing
musculature and movement in unprecedented detail.
Muybridge tweaked Victorian prudishness by photographing many of his
subjects nude. Unhappy with artists' models, he convinced students,
dancers, and even society matrons to disrobe for his cameras. To
contemporary sensibilities, this was shocking: his collaborator Thomas
Eakins had been fired from the Academy of Fine Arts for having men pose
nude in a mixed-sex drawing class. But Muybridge's work was supervised
by respected academics, and his fame and reputation preceded him.
Seen today, the motion studies still seem oddly modern. Captured in an
eternal present, men run, leap, box, fence, hit a baseball, somersault,
even play leapfrog.... In keeping with notions of the time, women
sweep, lounge, and bathe. Some photos are blatantly prurient: Muybridge
shows women getting into bed, smoking, and literally jumping in the
hay. Others -- like ñChickens Being Scared by a Torpedoî -- seem purely
whimsical. And everyone, including Muybridge, is photographed walking.

Published in 1887, Animal Locomotion was Muybridge's magnum opus. Its
eleven volumes and 781 plates cost more than $40,000 to publish, and
represented thirteen years of original work. Subscribers to the series
included Edison, the scientists William Thomson and Ernst Mach, and the
artists Eakins, Whistler, and Rodin. Even former president Ulysses S.
Grant signed up.
Acclaim and publicity notwithstanding, Animal Locomotion was not a
financial success. Muybridge was compelled to make the lecture circuit
once again -- to hawk subscriptions to the series.