VESANIJE. 509 



the two orders of Hallucinationes or False Perceptions, and 

 Morositates or Erroneous Appetites and Passions ; and, in like 

 manner, Linnaeus, in his class of MENTALES, corresponding to 

 the Vesaniae of Sauvages, has comprehended the two orders of 

 Imaginarii and Pathetici, nearly the same with the Halluci- 

 nationes and Morositates of that author. This, however, 

 from several considerations, appears to me improper; and I 

 have therefore formed a class of Vesanise nearly the same with 

 the Paranoise of Vogel, excluding from it the Hallucinationes 

 and Morositates, which I have referred to the Morbi Locales. 

 Mr. Vogel has done the like, in separating from the Paranoias 

 the false perceptions and erroneous appetites ; and has thrown 

 these into another class, to which he has given the title of 

 Hyperaestheses. 



MDXXIX. It is indeed true, that certain hallucinationes 

 and morositates are frequently combined with what I propose 

 to consider as strictly a vesania or an erroneous judgment ; and 

 sometimes the hallucinationes seem to lay the foundation of, 

 and to form almost entirely the vesania. But as most part of 

 the hallucinationes enumerated by the Nosologists are affections 

 purely topical, and induce no other error of judgment beside 

 that which relates to the single object of the sense or particular 

 organ affected ; so these are certainly to be separated from the 

 diseases which consist in a more general affection of the judg- 

 ment. Even when the hallucinationes constantly accompany 

 or seem to induce the vesania, yet being such as arise from in- 

 ternal causes, and may be presumed to arise from the same 

 cause as the more general affection of the judgment, they are 

 therefore to be considered as symptoms of this only. 



In like manner I judge with respect to the morositates, or 

 erroneous passions, that accompany vesania ; which, as conse- 

 quences of a false judgment, must be considered as arising from 

 the same causes, and as symptoms only of the more general 

 affection. 



There is, indeed, one case of a morositas which seems to in- 

 duce a vesania, or more general affection of the judgment ; and 

 this may lead us to consider the vesania, in this case, as a symp- 

 tom of an erroneous appetite, but will not afford any good rea- 



