400. That’s an error.

Google cannot redirect you to http://worldcat.org/search?q=History India: Mohammedan period described its own historians, Sir H.M. Elliot romesh chunder dutt stanley lane-poole vincent arthur smith sir henry miers elliot sir william wilson hunter sir alfred comyn lyall 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.