--- a/Unicode16String.st	Sat Jun 04 04:56:07 2016 +0200
+++ b/Unicode16String.st	Sat Jun 04 04:59:23 2016 +0200
@@ -209,6 +209,11 @@
 !
 
 isUnicodeString
+    "true if this is a 2- or 4-byte unicode string
+     (i.e. not a single byte string).
+     Notice, that the name is misleading: 
+     all strings are use unicode encoding"
+
     ^ true
 ! !