Considérations sur une espèce de paralysie qui affecte particulièrement les aliénés. Thèse [pour le doctorat en médecin] No. 224.

Delaye, a pupil of Esquirol, selected for his thesis the subject of “incomplete general paralysis of the insane”, which he differentiated from other forms of paralysis. He recorded the early signs of the disease, emphasizing the speech disturbance. Digital facsimile from Google Books at this link.