SECT. XXIX. 5. 1. ABSORBENTS. 253 



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 fame 

 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 dipped in the ferum of blood drawn from another perfon. 



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 fyliem ; and coincides with the curious 

 experiment related in fection the third, except that the f me 11 of 

 the afparagus was not here perceived, owing perhaps to the 

 roots having been made ufe of inftead of the heads. 



The rifmg in the throat of this patient, and the twitchings of 

 his limbs, feem to indicate fome fimilarity between the diabetes 

 and the hyiteric difrafe, befides the great flow of pale urine, 

 which is common to them both. 



Perhaps if the mefenteric glands were nicely infpefted in the 

 difledions of thefe patients; and if the thoracic duel, and the 

 larger branches of the lacleals, and if the lymphatics, which 

 arile from the bladder, were well examined by injeclion, or by. 

 the knife, the caufe of diabetes might be more certainly under- 

 ftooci. 



The opium alone, and the opium with the refin, feem much 

 to have ferveci this patient, and might probably have effected a 

 cure, if the difeafe had been (lighter, or the medicine had been 

 exhibited, before it had been confirmed by habit during the fev- 

 en months it had continued. The increafe of the quantity of 

 water on beginning the large dofes of refin was probably owing 

 to his omitting-the morning dofes of opium. 



As the urine in chyiiferous diabetes abounds fo much with 

 faccharine matter, as appears from the above cafe of Davis, Dr. 

 Rollo has ingenioufly recommended a diet of animal food alone ; 

 this, with a diminution of the quantity of fluid, which the pa- 

 tient was previouily accuitomed to, is faid to have changed the 

 quality oi the urine, and to have diminifhed its quantity. See 

 Part II Clais I. 3. 2. 6. of this work. 



V. The Phenomena of Dropfies explained. 



i. SOME inebriates have their paroxyfms of inebriety termin- 

 ated by much pale urine, or prof ufe fweats, or vomiting, or 



(tools ; 



