[wplug] Tunneling X across multiple SSH hops?

[Vanco, Don]

Anyone have a quick-n-dirty set of instructions for getting X to "play
nice" across multiple SSH hops?  Trying to get X from system "C" to
display on system "A" after hoping via system "B".  If it's not obvious,
these boxes are on private networks such that there's no way for "A" to
get to "C" without the divine intervention of "B".  I had thought this
would be simple, but I can't seem to fathom what's required.

Thnx
Don