How do I destroy objects?

[Joe Karnicky <KARNICKY@stripe.sri.com>]

I am programming a neural network simulation in flavors (Release 6.2).
I implement pulses traveling through wires as follows: a wire is an
instance of the flavor "wire".  Wires have an instance variable
"pulses".  The value of pulses for a wire is a list of uninterned
symbols (created by gensym).  The value of each symbol in this list is
an object of type "pulse" and represents a pulse currently traveling
in the wire.  Thus, when a pulse enters the wire (for example from a
neuron) a symbol and pulse object are created.    When the pulse
subsequently leaves the wire I remove its symbol from the pulses
list and everything simulates fine.   However, I'm concerned about
the fact that I'm accumulating a large number of useless pulse
objects.   Any suggestions about the correct way to turn these
into garbage?

Thanks,
Joe <KARNICKY@STRIPE.SRI.COM>
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