400. That’s an error.

Google cannot redirect you to http://worldcat.org/search?q=Jew;+being+defence+Judaism+against+all+adversaries,+attacks+Israel's+advocate+[publ.+American+society+meliorating+condition+Jews],+ed.+[really+written]+S.H.+Jackson+s+h.+jackson 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.