--- a/src/common/header.h	Mon Jun 02 10:38:10 2008 -0700
+++ b/src/common/header.h	Mon Jun 02 10:38:19 2008 -0700
@@ -34,9 +34,7 @@
  *
  * Every Protocol header which needs to be inserted or removed
  * from a Packet instance must derive from this base class and
- * implement the following public methods:
- *   - a default constructor: is used by the internal implementation
- *     if the Packet class.
+ * implement the pure virtual methods defined here. 
  *
  * Sample code which shows how to create a new type of Header, and how to use it, 
  * is shown in the sample file samples/main-packet-header.cc

--- a/src/common/trailer.h	Mon Jun 02 10:38:10 2008 -0700
+++ b/src/common/trailer.h	Mon Jun 02 10:38:19 2008 -0700
@@ -35,9 +35,7 @@
  *
  * Every Protocol trailer which needs to be inserted or removed
  * from a Packet instance must derive from this base class and
- * implement the following public methods:
- *   - a default constructor: is used by the internal implementation
- *     if the Packet class.
+ * implement the pure virtual methods defined here.
  */
 class Trailer : public Chunk
 {