This subject was recently discussed in the Congress for Mental Diseases, held in Rouen in August last.1
Delaporte opened the discussion by stating the diverse views held upon this subject, and the necessity of having a special table of causes, for all cases of general paralysis. Also, a second table of the number of syphilitics found among those affected with other forms of insanity.
Dubuisson, of Quatremare, had noticed a large increase in the number of paralytics, which he attributed to the increased consumption of alcohol. Out of 1,600 paretics, in only fifty could syphilis be determined. He ranged the causes of paretic dementia, according to their frequency, in the following order: alcoholism, heredity, overwork, syphilis, and traumatism.
Regnier, of Paris, claimed to have demonstrated that there were two distinct diseases, one known as pseudo-paralysis (Fournier) and the other as true dementia, dependent upon causes competent to produce other