Add my answer to Exercise 3.37.

Included are the following 2 files:

	Exercise_3.37.scm
	Test_of_Exercise_3.37.scm

Thank you!
							Lawrence X. Amlord
							  Oct 28th, 2013
							  Xi'an, China
Add my answer to Exercise 3.38.

This is really a giant amount of work.

Included are the following 2 files:

	Exercise_3.38.pdf
	Exercise_3.38.tm

Thank you!
							Lawrence X. Amlord
							  Nov 1st, 2013
							  Xi'an, China