diff --git a/Documentation/gsdoc/NSMutableSet.html b/Documentation/gsdoc/NSMutableSet.html
index 0d3738215..088f9d5d8 100644
--- a/Documentation/gsdoc/NSMutableSet.html
+++ b/Documentation/gsdoc/NSMutableSet.html
@@ -54,46 +54,64 @@
 <h3><a name ="method-2">addObject:</a></h3>
 - (void) <b>addObject:</b> (id)anObject;<br>
 
+	    Adds the specified object to the receiver.
+	    The object is retained by the set.
           
  <hr>
 <h3><a name ="method-3">addObjectsFromArray:</a></h3>
 - (void) <b>addObjectsFromArray:</b> (NSArray*)anArray;<br>
 
+	    Adds all the objects in the array to the receiver.
           
  <hr>
 <h3><a name ="method-4">initWithCapacity:</a></h3>
 - (id) <b>initWithCapacity:</b> (unsigned int)numItems;<br>
 
+	    Initialises the receiver to be ready to have the specified number
+	    of items added to it.  Additions of items to a set initialised
+	    with an appropriate capacity will be more efficient than addition
+	    of items otherwise.
           
  <hr>
 <h3><a name ="method-5">intersectSet:</a></h3>
 - (void) <b>intersectSet:</b> (NSSet*)otherSet;<br>
 
+	    Removes from the receiver all the objects it contains
+	    which are not also in otherSet.
           
  <hr>
 <h3><a name ="method-6">minusSet:</a></h3>
 - (void) <b>minusSet:</b> (NSSet*)otherSet;<br>
 
+	    Removes from the receiver all the objects that are in
+	    otherSet.
           
  <hr>
 <h3><a name ="method-7">removeAllObjects</a></h3>
 - (void) <b>removeAllObjects</b>;<br>
 
+	    Removes all objects from the receiver.
           
  <hr>
 <h3><a name ="method-8">removeObject:</a></h3>
 - (void) <b>removeObject:</b> (id)anObject;<br>
 
+	    Removes the specified object from the receiver.
           
  <hr>
 <h3><a name ="method-9">setSet:</a></h3>
 - (void) <b>setSet:</b> (NSSet*)otherSet;<br>
+Standards:  GNUstep MacOS-X NotOpenStep<br>
 
+	    Removes all objects from the receiver then adds the
+	    objects from otherSet.  If the receiver <em>is</em>
+	    otherSet, the method has no effect.
           
  <hr>
 <h3><a name ="method-10">unionSet:</a></h3>
 - (void) <b>unionSet:</b> (NSSet*)otherSet;<br>
 
+	    Adds all the objects from etherSet to the receiver.
           
  <hr>
 </body>