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				@@ -305,6 +305,12 @@ withAll: aCollection 
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				 Collection subclass: #IndexableCollection 
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				 	instanceVariableNames: '' 
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				 	package: 'Kernel-Collections'! 
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				+!IndexableCollection commentStamp! 
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				+An IndexableCollection is a key-value store, that is, 
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				+it stores values under indexes. 
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				+ 
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				+As a rule of thumb, if a collection has at: and at:put:, 
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				+it is an IndexableCollection.! 
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				 IndexableCollection subclass: #HashedCollection 
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				 	instanceVariableNames: '' 
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				@@ -646,6 +652,9 @@ includesKey: aKey 
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				 IndexableCollection subclass: #SequenceableCollection 
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				 	instanceVariableNames: '' 
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				 	package: 'Kernel-Collections'! 
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				+!SequenceableCollection commentStamp! 
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				+A SequencableCollection is an IndexableCollection 
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				+with numeric indexes starting with 1.! 
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				 !SequenceableCollection methodsFor: 'accessing'! 
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