The length of Little Joan's hair in the old and new footage.
David's head disappears behind the temple in the distance, revealing it to be a glass shot.
When Joan and David returns the African native baby to his parents (played by a black-faced white couple), the baby tries to resist, and cries in fright.
The director can be heard saying "mark it", followed by the loud snap of the clapper, just as the pygmie is killed.
A hand-cranked camera is reflected on the captain's bottle.