The Professor's Instant Changer, The Vacation Mirage, Cat-Napped

The Professor invents an "instant changer" to disguise himself in order to steal Felix's "magic bag of tricks." / Felix decides to take a vacation trip. The Professor follows him with his "mirage-maker" and plays "dirty" tricks on Felix. / Felix is "cat-napped" by Rock Bottom accidentally, when he dons a mask in Poindexter's likeness.