Add my answer to Exercise 1.26.

Included are the following 2 files:

	Exercise_1.26.pdf
	Exercise_1.26.tm

Thank you!
							Lawrence R. Amlord
							   May 6th, 2013
							   Xi'an, China
Add my answer to Exercise 1.27.

Included are the following 4 files:

	Exercise_1.27.pdf
	Exercise_1.27.scm
	Exercise_1.27.tm
	Test_for_Exercise_1.27.scm

Thank you!
							Lawrence R. Amlord
							   May 6th, 2013
							   Xi'an, China