Research index·Journal articleNotesNature·1 Aug 1872NobleIDark:/48914/w1/20260525/06FC1E8DDOI10.1038/006329d0Journal articleNotesNature · 1872 · SubscriptionNobleIDark:/48914/w1/20260525/06FC1E8DDOI10.1038/006329d0ReadRead at the publisherSaveCiteAdd to literature reviewPaywalledThe full text is at the publisherOpen it at the publisher to read it.Read at the publisherDiscussionAdd to the discussionTopicsSuccessor cardinalPhilosophyHumanitiesPolitical scienceRelated papersMoreDetailsPublished, publisher, issueSuggest a correction or report