Right.  that is because the parameter is simply the same array being 
manipulated in situ.  Hence, you have an array of references all to the 
same object.  The following works for me

Array streamContents: [:s |
	#(1 3 5) permutationsDo: [:each | s nextPut: each copy]]

Alternatively, you can use the code below, just insert the message copy 
after each.

On Tuesday, April 9, 2002, at 03:15 AM, Duane Maxwell wrote:

>> | foo |
>> foo := OrderedCollection new.
>> #(1 3 5) permutationsDo: [:each | foo add: each].
>>
>> Does that do it for you?
>
> No, unfortunately this gives:
>
> an OrderedCollection ( #(1 3 5) #(1 3 5) #(1 3 5) #(1 3 5) #(1 3 5) 
> #(1 3
> 5) )
>
> ...which is what probably prompted the question.
>
> -- Duane
>
>