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208: Mainline

To keep the size of this book manageable, class definitions displayed in the class-hierarchy browser shown are rerepresented in the following form:

Vegetable class definition 
Object subclass: #Vegetable 
  instanceVariableNames: 'fCalories cCalories pCalories' 
  classVariableNames: '' 
  poolDictionaries: '' 

When you see such a definition representation, you are to assume that Smalltalk has accepted the definition in response to your clicking right > save