Where can I read about the standard primitives in Squeak? I can find  
lots of resources on writing my own primitives, but I want to know  
what the existing ones do. For example, I'm looking at the "new"  
method in Behavior and I see "<primitive: 70>". Where can I find a  
description of that does? Is there an easy way to find the  
corresponding C source code?

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Mark Volkmann