No, not on a tree.

When I start Squeak under Linux it takes something like 20mb.  I'd
like it to tbe able to allocate more memory as the size of my image
grows.  I heard there was a way to do this, but I don't see it in
squeak --help.

I'm using Squeak 3.0 VM pre 2 which is the latest I think.  Squeak
3.1.

Sincerely,
jsj

-- 
the sky is tired of being blue