400. That’s an error.

Google cannot redirect you to http://worldcat.org/search?q=Tabula+altitudinum+solis+pro+horis+astronomicis+signorum+initijs,+ad+omnes+gradus+altitudinis+poli+borealis.+Supputata+per+Christophorum+Clauium+Bambergensem+Societatis+Iesu+christophorus+clavius 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.