400. That’s an error.

Google cannot redirect you to http://hip.wright.lib.oh.us/ipac20/ipac.jsp?session=1194LA090S968.965&profile=dial&uri=link=1100002~!312415~!1100001~!1100002&aspect=subtab13&menu=search&ri=7&source=~!dial&term=Defining the world : the extraordinary story of Dr. Johnson's Dictionary /&index=TL 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.