北方工业

北 = 丬 + 匕 : A compass rose. In the Eiffel Tower, Beelzebub tries to build a compass. As a baseplate he uses a piece of wood, on which he sticks the north pike of a compass rose. On the south pike he balances a ladle, which is supposed to adjust itself to earth's magnetic field.

方 = 丶 + 万 : In front of the anglepod, Frankenstein's monster is creating a piece of art. He uses a square as a frame, in which he installs a petal leaf held in the frame by neurons.

方 = 丶 + 万 : In front of the anglepod, Frankenstein's monster is creating a piece of art. He uses a square as a frame, in which he installs a petal leaf held in the frame by neurons.

工 = 二 + 丨 : Mnemonic symbol: a steel beam, since 工 looks like the cross section of a steel beam. In front of the engine ((e)ng1), Gitta Giraffe (gu) is doing some hard work: She's stacking a capacitor (二) on a dinosaur bone (丨) on a capacitor (二). She's not very successful, but then she gets the idea to use steel beams (工) as support.

I can't help but see a bullfrog in 业. Maud Younger finds that the climate in the elevator's bathroom are perfect for her new business: growing bullfrogs.