116 Notices of a singular form of Fever. 



moved without the use of the trocar. This man had no 

 medical assistance. 



What the cause of this disease was, is, perhaps, uncer- 

 tain : but that the bile, either from a defect in quantity, 

 or from too great a viscidity, did not find its way into 

 the intestines, and thus, by depriving the superior portion 

 of that canal of so necessary a stimulus, &c, pro- 

 duced the pain in that region, and the colourless stools, 

 is very evident. 



To theorize on the affection, however, is not my inten- 

 tion; and, therefore, I barely give you the most prominent, 

 symptoms of an epidemic, at least novel in this quarter 

 of the globe, believing that, in your general researches 

 after knowledge, nothing that has the appearance of, no- 

 velty would be unwelcome to you. 



I am, &x., &c, 

 Your Friend, 



Felix Robertson. 

 Nashville, April 3th, 

 1806. 



III. Hints relative to Sxvallows. 



Dear Sir, 



IS it yet ascertained whether Swallows are birds 

 of passage, or remain with us during the winter in a tor- 

 pid state ? I am led to ask this question, from the fol- 

 low ing passages, which I met with in the celebrated Reg- 

 nard's Voyage into Lapland, in the year 1681. 



