Note 839 — Chapter V · (continued 3)

‘Together with this, the languor, inactivity, and debility of the animal motions, the imperfect sensations, the feeling of cold, while the body is truly warm, and some other symptoms, all show that the energy of the brain is, on this occasion, greatly weakened; and I presume that, as the weakness of the action of the heart can hardly be imputed to any other cause, this weakness also is a proof of the diminished energy of the brain. So I conclude, that a debility of the nervous power forms the beginning of the cold fit, and lays the foundation of all the other phenomena.’ Practice of Physic, in Cullen's Works, vol. i. p. 492.