What kind of work is going on in the Academy of Projectors? What opinion does Gulliver form of it?

"A further Account of Glubbdubdrib. Antient and Modern History corrected."

Gulliver spends a great deal of time speaking with various famous dead people. He speaks with Homer, Aristotle, and Descartes and even gets them into conversation with one another. He later brings back a few English Yeomen and finds them much larger and stronger than the English people today. He worries that his countrymen are diminishing with time.