>Thanks for answering how to understand those examples, but I have not
>yet found the Dolphin Squeak pattern pages.  On the other hand, I did
>find a course at
>http://st-www.cs.uiuc.edu/users/johnson/cs497/notes98/online-course.html
>which helps.  Got a URL for the pattern pages?

http://www.object-arts.com/EducationCentre/Patterns/DoubleDispatch.htm


>And how do I look for
>streamContents, and where?

Start up Squeak.  Right-click (option-click) and select "open", and 
then select "workspace."

Type the word "streamContents:" (including the colon)

Type Command-M -- this gives you a browser that will select two 
implementors of the selector.

Type Command-N -- this gives you a browser that will select many 
examples where the streamContents: message is sent.

If these are not sufficiently explanatory for you, you might want to 
spend some time first learning the basics.  This is likely to be 
gibberish until you are reasonably fluent with the collection 
classes.  You might just browse through them, as they are reasonably 
well-documented.  Several books are suggested in the squeak website:

	http://squeak.cs.uiuc.edu

Please feel free to inquire via private e-mail if you require further pointers.