400. That’s an error.

Google cannot redirect you to http://worldcat.org/search?q=Recta+latini+graecique+sermonis+pronuntiatione,+Des.+Erasmi+Rot.+Dialogus.+Ciceronianus+eiusdem+per+eundem+emendatus+et+auctus.+[Hilarii+Bertulphi+Elegia+defunctum+Io.+Frobenium.+Rodolphi+Agricolae+Oratio+laudem+Matthiae+Richili.+Epitaphia+Jacobi+Wimphelingi+per+Bet.+Rhenanum+et+per+J.+Carnarium]+didier+érasme+gryphius 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.