536 PRACTICE OF PHYSIC. 



They are so many approaches to remittent and frequently to 

 continued fevers. 



" The other varieties of Intermittent Quartan fevers, depend- 

 ing upon their symptoms and upon their complication with other 

 diseases, are precisely the same with those which have been 

 enumerated under the head of Tertians, as varying by the same 

 causes. 



" II. Remittent Quartan Fevers. Of these the first variety 

 is the Tetartophya simplex (see Synopsis , page 252, note *), 

 or a continued fever without any topical affection, observing the 

 quartan form. Here you will observe that the quartan is the 

 most remote in its nature from the continued form, so that it is 

 a rare accident. But it is of more consequence to consider the 

 variety described under the name of Tetartophya maligna, a 

 disease similar to the malignant tertian. It begins as a quartan, 

 but loses its proper form about the fourth day, and becomes fatal. 

 I consider the Tetartophya carotica, which Sauvages has made 

 a separate species, as the principal species of the Tetartophya 

 maligna : it is attended with fits of coma, carus, and a degree 

 of apoplexy. 



" The next two instances of remittent quartan, the Tetarto- 

 phya splenalgica and hepatalgica, are owing to the common- 

 ness of a fact which may give occasion to them, viz. the quar- 

 tans producing congestions and topical affections in the spleen 

 and liver. (See Synopsis, p. 252, note (.) 



"I have now gone through my remarks upon the different forms 

 of the Tertian and Quartan fevers ; but, besides them and the 

 Quotidian, a fourth form of Intermittents is introduced by Sau- 

 vages under the title of Febres Intermittentes ERRATICS. 

 These certainly are to be taken notice of as facts in the history 

 of diseases ; they are however so rare as not to be much worthy 

 of our consideration, and they are not separate forms constitut- 

 ing genera, but only varieties of the Tertian and Quartan fe- 

 vers, and from the universality of these forms nine out of ten of 

 the Erraticoe must belong to them. We find that when, by art 

 or nature, the disease has seemingly disappeared, and the per- 

 son is in good health, these intermittents do very frequently re- 

 turn, perhaps after two weeks, and that, when this is the case* 



