What is an example of allusion in “The Legend of Sleepy Hollow?”

What is an example of allusion in “The Legend of Sleepy Hollow?”

READ ALSO :   A series RLC circuit is driven by a generator at a frequency of 2000 Hz and an emf amplitude of 170 V. The inductance is 60.0 mH, the capacitance is 0.400 µF, and the resistance is 200 O. (a) What is the phase constant in radians? (b) What is the current amplitude?