400. That’s an error.

Google cannot redirect you to http://dogbert.abebooks.com/servlet/SearchResults?tn=Histoire+des+variations+des+%C3%89glises+protestantes,+suivie+des+Avertissemens+aux+protestans,+sur+les+lettres+du+ministre+Jurieu 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.