Capgras' syndrome -- De Clérambault's syndrome -- The Othello syndrome -- Ganser's syndrome -- The Couvade syndrome -- Munchausen's syndrome and some related disorders -- Gilles de la Tourette's syndrome -- Cotard's syndrome (La délire de négation) -- Folie à deux (et folie à plusieurs) -- Ekbom's syndrome (delusional parasitosis) -- Possession states and allied syndromes.