Lisp code for Chapter 4

	search.lisp      basic search routines
	search.scm

	tree.lisp	 abstract data structures for trees
	tree.scm

	dtree.lisp       discrimination trees
	dtree.scm

	genetic.lisp     genetic algorithms for optimization
	genetic.scm


The Scheme code in this directory was generated from the Common Lisp
code using the automatic translation routines in ../../SchemeSupport/
The file ../../SchemeSupport/schemify.scm must be loaded in order to
run the .scm files in this directory as it contains the code for 
basic routines that are part of Common Lisp. 
