264 DISEASES CLASS II. 1. 7. 6, 



a cylinder as by day, and we are deceived and alarmed by see- 

 ing things as they really are seen. See Berkley on Vision. 



6. Hallucinatio audittfs. Auricular deception frequently oc- 

 curs in dreams, and sometimes precedes general delirium in fe- 

 vers; and sometimes belongs to vertigo, and to reverie, and to 

 insanity. See Sect. XX. 7. and Class III. 1.2. 1. and 2. 



7. Rubor a ealore. The blush from heat is occasioned by the 

 increased action of the cutaneous vessels in consequence of the 

 increased sensation of heat. See Class I. 1. 2. 1. and 3. 



8. Rubor jucunditatis. The blush of joy is owing to the in- 

 creased action of the capillary arteries, along with that of every 

 moving vessel in the body, from the increase of pleasurable sen- 

 sation. 



9. Priapismus amatorius. Amatorial priapism. The blood 

 is poured into the cells of the corpora cavernosa much faster 

 than it can be reabsorbed by the vena penis, owing in this case 

 to the pleasurable sensation of love increasing the arterial action* 

 See Class I. 1. 4. 6. 



10. Distentio mamularum. The teats of female animals, when 

 they give suck, become rigid and erected, in the same manner as 

 in the last article, from the pleasurable sensation of the love of the 

 mother to her offspring. Whence the teat may properly be called 

 an organ of sense. The nipples of men do the same when rub- 

 bed with the hand. See Class I. 1,4. 7. 



