424 DISEASES CLASS IV. 2. o. 3. 



acquired the chorea St. Viti in so universal a manner, that her 

 speech became affected as well as her limbs; and there was evi- 

 dently a disunion of the common trains of ideas; as the itch 

 was still among the younger children of the family, she was ad- 

 vised to take her sister as a bedfellow, and thus received the itch 

 again; and the dance of St. Vitus gradually ceased. See Class 



II. 1 . 5. 6. 



M. M. Give the patient the itch again. Calomel a grain 

 every night, or sublimate a quarter of a grain twice a day for a 

 fortnight. Steel. Bark. Warm bath. Cold bath. Opium. 

 Venesection once at the beginning of the disease. Electricity. 

 Perpetual, slow and repeated efforts to move each limb in the de- 

 signed direction, as in the titubatio linguae above described. 



3. Risus. Laughter is a perpetual interruption of voluntary 

 exertion by the interposition of pleasurable sensation; which not 

 being checked by any important consequences rises into pain, 

 and requires to be relieved or moderated by the frequent repeti- 

 tion of voluntary exertion. See Sect. XXXIV. 1. 4. and Class 



III. 1.1. 4. and IV. 1.3.3. 



4. Tremor ex ird. The trembling of the limbs frpm anger. 

 The interruption of the voluntary associations of motions by an- 

 ger, originates from too great a part of the sensorial power being 

 exerted on the organs of sense; whence the muscles, which ought 

 to support the body upright, are deprived of their due quantity, 

 and tremble from debility. See Class III. 2. 1. 1. 



5. Rubor ex ird. Redness from anger. Anger is an excess 

 of aversion, that is, of voluntarily not yet employed. It is excited 

 by the pain of offended pride; when it is employed it becomes 

 outrage, cruelty, insanity. The cutaneous capillaries, especially 

 those of the face, are more mobile, that is, more easily excited 

 into increased action, or more easily become torpid, from less 

 variation of sensorial power, than any other parts of the system, 

 which is owing to their being perpetually subject to the vicissi- 

 tudes of heat and cold, and of extension and corrugation. Hence, 

 when an excess of voluntarity exists without being immediately 

 expended in the actions of the large muscles, the capillary arteries 

 and glands acquire more energetic action, and a flushed skin is 

 produced, with increased secretion of perspirable matter, and 

 consequent heat, owing to the pause or interruption of voluntary 

 action; and thus the actions of these cutaneous vessels become 

 associated between the irascent ideas and irascent muscular ac- 

 tions, which are thus for a time interrupted. 



6. Rubor criminati. The blushing of accused people, whether 

 guilty or not, appears to be owing to circumstances similar to 



