A google search came up /w these references.. Quite an extensive list <A HREF="http://www.google.ca/search?q=%22Darvas+box%22&ie=ISO-8859-1&hl=en&meta=" target="_new">http://www.google.ca/search?q=%22Darvas+box%22&ie=ISO-8859-1&hl=en&meta=</A> I've been interested in this concept for quite some time Thanks for setting up this board.