400. That’s an error.

Google cannot redirect you to http://www.chapitre.com/frame_rec.asp?donnee_appel=PRINTGOOGLE&titre=L%27Ann%C3%A9e+litt%C3%A9raire,+ou,+Suite+des+lettres+sur+quelques+%C3%A9crits+ce+temps 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.