In the hypochondriacal form of general paralysis, vaso-motor disturbances, flushed or pale face, headache, defective circulation, and various abnormal sensations referred to the peripheral nerves and internal organs are associated with a hypochondriacal mental state, which is also marked by an evident mental impairment, manifested in an almost childish changeability of complaints. Grand delusions and great mental and motor excitement do not, as a rule, appear until the later stages, but the hypochondriacal form is less subacute than the demented. In general paralysis with melancholia the sad delusions are apt to be associated with some form of expansive ideas or to be transformed into them at some stages of the disease, although the classical delusions of grandeur are a late symptom. The maniacal form of general paralysis with the délire de grandeur is the disease as described by Calmeil. Mental exhilaration and delusions of personal importance are its conspicuous features. It may develop at any time in the course of the other three forms just mentioned; its prodromal period may be such as has been described, usually shorter, or the symptoms may be of excitement and maniacal from the beginning. It is the general paralysis of the books until within recent years. It is doubtful whether these four forms of general paralysis depend upon any pathological basis which can now be determined, but their recognition is practically important for an early diagnosis, and they differ from each other very little in their later and final stages. They constitute what is known as the descending form of general paralysis, in the majority of cases of which descending degeneration of the lateral columns of the spinal cord or posterior spinal sclerosis, or both, appear, secondary to the brain disease. In the ascending form of general paralysis there are posterior spinal sclerosis and the usual symptoms of that condition—which are described in another article of this work—from one year to a dozen or more years before there are indications of dementia.