To use scheme version 6.1 on athena you must be on a vax.  Then you must do:

	attach scheme.old

To run scheme at the athena prompt type:

	/mit/scheme/vaxbin/scheme

To run scheme from emacs you must first load the interface libraries, as
follows:

	M-x load-file<ret>
	/mit/scheme/dist/etc/scheme.el<ret>

	M-x load-file<ret>
	/mit/scheme/dist/etc/xscheme.el<ret>

Then to run scheme:

	C-u M-x run-scheme<ret>
	/mit/scheme/vaxbin/scheme

To evaluate an expression inside emacs use:

	C-x C-e

To abort execution or return to the top level REPL from a error level use:

	C-c g

For more information on how to use scheme inside emacs type (in the *scheme*
buffer):

	C-h m

For more information on the scheme language look in:

	/mit/scheme/dist/documentation/*.txt

/mit/scheme/dist/documentation/r3rs contains the LaTex sources for the
"Revised Revised Revised Report on Scheme" this is the document that define
what STANDARD scheme is.

To reset the scheme process if it gets into a really bizarre state use:

	M-x reset-scheme