(it is frequent at puberty, at the onset of I 'g nancy, and after alcoholic excesses); a `meningo gastric' (Orin with nervous symptoms, but also with other, more primitive ones that appear 'to correspond with the epigastric region' and that, in any case, follow stomach disorders; an adeno meningic form, `whose symptoms indicate an irritation of the mucous membranes of the intestinal duct'; a form occurring above all, in subjects of a lympathic temperament, in women and old men; an adynamic form `that is manifested above all on the outside by signs of extreme debility and a general atonia of the muscles'.