Add my answer to Exercise 4.24.

Included are the following 6 files:

	Exercise_4.24.pdf
	Exercise_4.24.tm
	Metacircular_Evaluator.scm
	Metacircular_Evaluator_2e.scm
	Test_for_Metacircular_2e.scm
	Test_for_Metacircular_Evaluator.scm

Thank you!
							Lawrence X. Amlord
							  Feb 18th, 2014
							  Fuzhou, China