Chapter v, paragraph 4: “i saw another at work to calcine ice into gunpowder; who likewise showed me a treatise he had written concerning the malleability of fire, which he intended to publish. . ” chapter v, paragraph 14: “everyone knew how laborious the usual method is of attaining to arts and sciences; whereas, by his contrivance the most ignorant person, at a reasonable charge, and with a little bodily labor, may write books in philosophy, poetry, politics, law, mathematics, and theology, without the least assistance from genius or study. he then took me to the frame . . ”

which setting do the passages above indicate?
a library with many types of books
a classroom in a preschool
a place where books are burned
a place where experiments are performed