Complex sentence: He taught them about architecture, botany, geology, bought a microscope for them, and made model steam engines; he showed them how to dissect a squirrel, and how to boil the flesh off a fox, then reassemble its skeleton.
Split into simpler sentences: He taught them about architecture, botany, geology, and bought a microscope for them and made model steam engines. He also showed them how to dissect a squirrel and how to boil the flesh off a fox, then reassemble its skeleton.