Aminadab Timeline and Summary

We learn that Aminadab is Aylmer's assistant and has been for many years. Though he doesn't understand the science behind Aylmer's experiments, he can carry out all the physical tasks perfectly.
Aminadab is described as short, stocky, and earthy.
The narrator, apparently unable to hold back, points out that Aminadab represents man's physical, earthy half, while Aylmer represents his lofty, spiritual half.
Aminadab helps Aylmer move the unconscious Georgiana into the boudoir. He mutters under his breath that, if she were his wife, he would not tamper with the birthmark.
Aminadab helps Aylmer prepare the elixir for Georgiana.
When the birthmark is gone from Georgiana's face, Aminadab laughs.
When Georgiana is dying, he laughs again.