URINE. 



487 



Ingesta. 



Egesta. 



Total, . 220 Total, . 148 



Towards the end of the month of March the opium was dis- 

 continued, and this was followed by a return of the original symp- 

 toms. The patient was dismissed shortly after. The quantity 

 of urine was daily 8 Ibs. It had a sweetish taste, and fermented 

 readily with yeast. At the end of March his weight was 5 stones 

 and 3 Ibs. 



In the second case given by Mr Macgregor, the symptoms and 

 treatment were nearly the same. It is unnecessary, therefore, 

 to state it at length. 



Mr Macgregor found urea in diabetic urine to fully as great 

 an amount as in healthy urine. One patient passed daily 14-65 

 Ibs. of urine of specific gravity 1*039. It contained 101 3-D 

 grains of urea. Another passed 30 Ibs. of urine of specific gra- 

 vity 1 -045. This urine contained 945 grains of urea. A third 

 passed daily 40 Ibs, of urine of specific gravity 1-034, and con- 

 taining 810 grains of urea. A fourth passed 25 Ibs. of urine of 

 specific gravity 1-050, and containing 512-5 grains of urea. Now 

 the greatest quantity of urea passed in twenty-four hours in the 

 tables of Lecanu given above, and containing 93 cases, was 50T06 

 grains. 



The sugar which exists in such quantity in the urine of dia- 

 betic patients is not generated by the kidneys, but by the organs 

 of digestion. Mr Macgregor found it abundantly in the blood,* 



* Vauquelin had long ago examined the blood of a diabetic patient without 

 finding any sugar in it. (Jour, de Physiologic, iv. 257.) This also had been 

 done by Dr Wollaston. The method employed by these chemists had not been 

 sufficiently delicate. 



