534 PRACTICE OF PHYSIC. 



vers, he has divided the latter into two kinds, the Tertiana 

 solitaria and Tertiana comitata. The solitaria is that fever 

 which has distinctly the form of Tertian, and is not accom- 

 panied with dangerous symptoms ; the comitata is the Tertian, 

 accompanied with dangerous symptoms. 



"I have endeavoured to reduce the species of Sauvages to those 

 marked by Torti. But as I could not enter into a full descrip- 

 tion of all the varieties, I have given a long list of authors to 

 consult on this subject, and that in a great measure in chrono- 

 logical order, by observing which you will find that the dis- 

 ease has been almost always the same. Dr. Sydenham is apt 

 to mislead us in this respect : he saw a considerably variety, as 

 he was more accurate in his observations ; and though he did 

 not suppose these variations endless, but believed them to return 

 after a period of years, yet he has led us to a view of a greater 

 variety than really exists. For from the middle of the sixteenth 

 century, for more than two hundred years, this Epidemic has 

 been wonderfully uniform. So we need not be distracted with 

 the varieties which we may find in those authors, for several of 

 them have seen things in a false light ; and though there be an 

 appearance of difference, when more nearly viewed these varie- 

 ties are found to be the same. 



" The series of authors to which I have referred, serves to point 

 out the sameness of the disease, not only in different periods of 

 time, but also in different countries and parts of the world 

 whether it occurs in Germany and other parts of Europe, or in 

 the East and West Indies : we are indebted to Dr. Lind for 

 pointing out the strict uniformity of all these intermittent 

 fevers. 



" Such as do not incline to study all those celebrated au- 

 thors, may form a compendious library, and read first Morton 

 and Willis. They were succeeded by Dr. Sydenham, who 

 eclipsed their reputation : and in consequence of that age de- 

 claring so much against all theoretical writings whatever, they 

 were thrown under reproach. Their writings contain a great deal 

 of frivolous theory, which, however, I think, may easily be 

 avoided at this day ; but they both abound with facts of very 

 great importance. After them you may take Torti, and after 

 him Cleghorn, Senac, and Lind. 



