57* RETROGRADE ABSORBENTS. SECT. XXIX. 4. 



I 



of rhubarb : the patient took a fourth part of this 

 mixture every five minutes, till he had taken the 

 whole. In about half an hour he made eighteen 

 ounces of water, which was very manifeftly tinged 

 with the rhubarb j the fmell of the afparagus was 

 doubtful. 



He then loft four ounces of blood, the ferum of 

 which was not fo opake as that drawn before, but 

 of a yellowim caft, as the ferum of the blood 

 ufually appears. 



Paper, dipped three or four times in the tinged 

 urine and dried again, did not fcintillate when it 

 was fet on fire; but tfhen the flame was blown out, 

 the fire ran along the paper for half an inch ; which, 

 when the fame paper was unimpregnated, it would 

 not do ; nor when the fame paper was dipped in 

 urine made before he took the nitre, and dried in 

 the fame manner. 



Paper, dipped in the ferum of the blood and 

 dried in the lame manner as in the urine, did not 

 fcintillate when the flame was blown out, but burnt 

 exactly in the fame manner as the fame paper dip- 

 ped in the ferum of blood drawn from another per* 

 fon. 



This experiment, which is copied from a letter 

 of Mr. Hughes, as well as the former, feems to 

 evince the exiftence of another paflage from the 

 inteftines to the bladder, in this difeafe, befides that 

 of the fanguiferous fyftem ; and coincides with the 

 curious experiment related in fedlion the third, 

 except that the fmell of the afparagus was not here 

 perceived, owing perhaps to the roots having been 

 made ufe of inftead of the heads. 



The rifing in the throat of this patient, and the 

 twhchings of his limbs, feem to indicate fome fimi- 

 larity between the diabetes and the hyfteric difeafe, 

 befides the great flow of 'pale urine, which is com- 

 mon to them both. 



Perhaps 



