Sect. XXIX. 3. 1. ABSORBENTS. 243 



part of which might have efcaped from a rupture of the recep- 

 taculum chyli ; yet other parts of this general etfufion of chyle 

 muff feem to have been occafioned by their retrograde a£tiou 

 in the dving ftate of the animals. MedicaJ Researches? p. 106. 

 There is a curious cafe of ifchuria related by Dr. J. Semer 

 in the Tranfaclions of the College of Philadelphia, Vol. f. 1 793, 

 which continued more than three years, during which time, if 

 the urine was not drawn off by a catheter, it was frequently void- 

 ed by vomiting, and fometimes by the iliin ; which could not 

 be accounted for, as Dr. Senter juftly obferves, but by fuppo- 

 iing the exiftence of the retrograde action of fome pares of the 

 lymphatic fyftem. 



,111. Communication from the Alimentary Canal to the Bladder ', by 



means of the Abforbent Vefeh. 



Many medical philofophers,both ancient and modern, have fuf- 

 •pecked that there was a nearer communication between the ftom- 

 ach and the urinary bladder, than that of the circulation : they 

 were led into this opinion from the great expedition with which 

 cold water, when drunk to excefs, pafles off by the bladder ; 

 and from the fimilarity of the urine, when produced in this hafty 

 ,• manner, with the material that was drunk. 



The former of thefe circumftances happens perpetually to 

 thofe who drink abundance of cold water, when they are much 

 heated by exercife, and to many at the beginning of intoxication. 



Of the latter, many inftances are recorded by Etmuller, t. xi. 

 p. 716. where limple water, wine, and wine with fugar, and 

 emulfions, were returned by urine unchanged. 



There are other experiments, that feem to demonftrate the 

 -exiftence of another pafTage to the bladder, befides that through 

 the kidneys. Thus Dr. Kratzenftein put ligatures on the ure- 

 ters of a dog, and then emptied the bladder by a catheter ; yet 

 in a little time the dog drank greedily, and made a quantity of 

 water, (Difputat. Morbor. Halleri. t. iv. p. 63.) A fimilar ex- 

 periment is related in the Philofophical Tranfactions, with the 

 fame event, (No. 6$, 67, for the year 1670.) 



Add to this, that in fome morbid cafes the urine lias continu- 

 ed to pafs, after the fuppuration or total deftruttion of the kid- 

 neys ; of which many inftances are referred to in the Elem. 

 Phyfiol. t. vii. p. 379. of Dr. Haller, 



From all which it muft be concluded, that fome fluids have 

 parTed from the ftomach or abdomen, without having gone 

 through the fanguiferous circulation : and as the bladder is fup- 

 plied with many lymphatics, as defcribed by Dr. Watfon, in the 



Philoi 



