iS13,] discharged in Dlahetes MelUtus, " SS'' 



ceased to lose weight, and till it left an extract which became 

 quite solid on cooling. 



Specific Gravity of the Urine. 



y ^ . , 



111 degrees and tenths Compared with icco Quantity of solid extract Quantity of solid extract, in a 



of Twaddle's Hy- parts of v.atcr at in a wine pint, iu grs. wine piat, in 



di-omfiter. 6" Fahr. and tenths, oz. dr. scr. grs. 



4- ...... 1020 .. 382-4 6 1 2 



4-2 1021 401-6 .. . 6 2 1 



4-4 1022 ...... 420-8 7 0 0 



4-6 1023 440- 7 1 0 



4- 8 1024 459-2 7 1 19 



5- 1025 478-4 7 2 IS 



5-2 1026 497*6 1 0 0 17 



5-4 1027 516-8 1 0 1 16 



5-6 1028 536- 1 0 2 16 



5- 8 1029 .. 555-2 1 1 0 15 



6- 1030 574-4 . . . . ..Ill 14 



6-2 1031 593-6 1 1 2 13 



6-4 1032 612-8 1 2 0 12 



6-6 1033 632- 1 2 1 12 



6- 8 . . 1034 651-2 1 2 2 11 



7- 1035 670-4 1 3 0 10 



7'2 1036 . . 689-6 1 3 1 9 



7-4 1037 708-8 1 3 2 8 



7- 6. 1038 728- 1 4 0 8 



7*8 1039 ...... 747'2 1 4 1 7 



8- 1040 766-4 1 4 2 6 



8-4 1042 804-8 i 5 1 4 



8- 8 1044 843-2 1 6 0 3 



9- 2 1046 881-6 1 6 2 1 



9-6 1048 920- 1 7 1 0 



10- 1060 958-4 1 7 2 18 



2. On the Quafitity of Urea contained i?i Dlaletic Urine^ ivith 

 some Inferences respscting ike Pathology of the Disease, 



Another circumstance respecting diabetic urine, which has 

 not hitherto been sufficiently determined, is the presence or ab- 

 sence of that substance, the secretion of which is the peculiar 

 office of the kidney ; and which gives to healthy iirine its 

 characteristic properties. Criiickshank,* Dalton,t Fourcroy,;!: 

 Nicholas and Gueudevilie, § and Thenard, || have been led to 

 conclude, that urea is not contained, in any proportion what- 

 soever, in diabetic urine. Dr. Bostock, in the paper already 

 quoted,** expresses a different opinion; but that able philosopher 



* Rollo on Diabetes, j7*:ss£m. f Bardsley's Med. Reports, p. 161. 



X Syst.des Goniiais. Chlm.^tio, p. 480. § Ann. de Chim, iix. 48. 

 I Ann. de Cbim. xliy. 69. **P. 260. 



