diff --git a/reference/mongo/connecting.xml b/reference/mongo/connecting.xml
index 16e78d7ff3..d0aa18cb8c 100644
--- a/reference/mongo/connecting.xml
+++ b/reference/mongo/connecting.xml
@@ -58,41 +58,6 @@ $m = new Mongo("mongodb://${username}:${password}@localhost", array("db" => "myD
    If your connection is dropped, the driver will automatically attempt to
    reconnect and reauthenticate you.
   </para>
-  <para>
-   You can also authenticate on a per-database level with
-   <function>MongoDB::authenticate</function>:
-  </para>
-  <programlisting role="php">
-<![CDATA[
-<?php
-
-$m = new Mongo();
-$db = $m->admin;
-
-$db->authenticate($username, $password);
-
-?>
-]]>
-  </programlisting>
-  <para>
-   There is a major disadvantage to this method: if the connection is dropped
-   and then reconnects, the new connection will not be authenticated. If you use
-   the URI format, the PHP driver will automatically authenticate the user
-   whenever a new connection is made.
-  </para>
-  <para>
-   To authenticate with a different database, specify the database name after
-   the hosts. This example will log the user into the "blog" database:
-  </para>
-  <programlisting role="php">
-<![CDATA[
-<?php
-
-$m = new Mongo("mongodb://${username}:${password}@localhost/blog");
-
-?>
-]]>
-  </programlisting>
  </section>
 
  <section>