The humor is shown in the way the trials were conducted; First of all, they were <u>advertised</u> - like an entertainment spectacle or a circus show.
<em>"Accordingly the Time and Place was agreed on, and advertised about the Country; "</em>
These witch trials are ridiculed because they are referred to as an <em>Experiment - </em>supposedly based on facts and reason to prove someone is guilty, and alluding to science experiments - when in reality they were not logical at all.
<em>"(...) if the Accused were weighed in Scales against a Bible, the Bible would prove too heavy for them; or that, if they were bound and put into the River, they would swim;"</em>
In the end they decide to repeat the trials, and they promise nudity to attract a bigger audience.
<em>" But it being the general Belief of the Populace, that the Womens Shifts, and the Garters with which they were bound help’d to support them; </em><u><em>it is said they are to be tried again the next warm Weather, naked.</em></u><em>"</em>
Andrew Jackson tried to persuade people by stating that people were still savages. So their incorporation was a mistakes due to the government might have ruin their policies and fail. He considered legitimate to remove them from the territory since they were not capable of being like the rest of the people.
I've read the book or story and since there are no answer choices, I'm gonna just tell you what I think ok. The man is hitting the narrator on the head with an umbrella because he feels the need to, and soon the narrator learns that he can't live without it. The moral of the story is basically teaching a lesson