400. That’s an error.

Google cannot redirect you to http://worldcat.org/search?q=speech+...+John,+earl+Clare+...+House+lords+Ireland+motion+made+him+February+10,+1800,+'that+order+promote+...+essential+interests+Great+Britain+Ireland+...+will+adviseable+concur+such+measures+may+best+tend+unite+two+Kingdoms'.+john+fitzgibbon+(1st+earl+clare.) because the request was invalid.

This might be because the link was created a long time ago. Try your search again on Google. That’s all we know.