We are both fortunate, then, that I am no child in need of schooling.

[She says, as she... pulls the trigger repeatedly, watching the mechanism that makes the revolver's barrels rotate. Good thing there aren't any bullets in it.]

I do not know what this "gunpowder" is. Lawrence mentioned black powder once; he said he did not want to ship it, for it might get wet in the rain and become impossible to sell. Is that similar?