emacs and xscheme

[jinx@chamartin.ai.mit.edu (Guillermo J. Rozas)]

    M-x run-scheme in fact runs an xscheme subprocess - but fails to send
    anything to it.  My emacs has no such problem with Cscheme - hence
    I suspect xscheme.

If you are using GNU Emacs and a reasonably recent version of MIT
CScheme, the interface code in your Emacs may not work with anything
else but your version of CScheme.  There is some form of handshake
between GNU Emacs and CScheme, which presumably is not implemented by
xscheme.  This would probably prevent them from working together.