Programs from Chapter 5 include:

o kruskal.p		This is Program 5.1, p. 273
o prim.p		This is Program 5.2, p. 276
o cheriton_tarjan.p	This is Program 5.3, p. 283

Also included are:

o map57			The input file describing the 57-city map
o lexicon		The 30 most common words in the English language,
			as used in collecting data about Hemingway's
			"The Snows of Kilimanjaro" (last paragraph, p. 299)
