328 CIRCULATING FLUIDS: 



The blood in analysis 41 was obtained from a man aged 50 

 years, who had taken a full meal of animal food two hours pre- 

 vious to being bled. The 2-5 parts of sugar were not perfectly 

 pure; they contained extractive matter, and some salts. 



The blood in analysis 42 was taken before dinner from a 

 girl aged 20 years. The presence of sugar was only just per- 

 ceptible by the taste, by the sulphuric acid test, and by the 

 odour evolved on burning it. The disease in this case was far 

 advanced, and it is worthy of remark that, six or eight days pre- 

 vious to dissolution, the diabetes sapidus became converted into 

 diabetes insipidus. 



This patient made an extremely large quantity of water, which 

 was not very abundant in sugar; while the man, aged 50, 

 passed only two or three quarts of urine daily, containing a large 

 proportion of sugar. 



The blood in analysis 43 was taken before dinner from a 

 man aged 30 years, who passed a very large quantity of water, 

 which, however, did not contain much sugar. 



I give, in the following table, the analyses of other observers:^ 



Henry and Soubeiran. Lecanu. 

 816-50 848-35 



183-50 151-65 



2-43 



55-48 58-47 



120-37 85-18 



5-57 8-00 



I further add the following analysis of the serum in diabetes, 

 made by Rees.2 



Water 908-50 



Albumen, with a trace of phosphate of lime and peroxide of iron 80*35 



Fat 0-95 



Diabetic sugar 1*80 



Alcohol-extract and urea 2*20 



Albuminate of soda, alkaline chlorides and carbonates, with 



a trace of sulphates and phosphates .... 0-80 



[Some very important additions to our knowledge of the 

 pathology of this obscure disease will be found in Dr. Percy's 

 ' Observations and Experiments concerning diabetes mellitus.' 

 Med. Gaz. vol. ii, 1843.] 



• In adchtion to those quoted in the text, there is an analysis of diabetic l)Iood by 

 Miiller in the Archiv d. Pharm., vol. 18, p. 55. Its extreme peculiarity renders its 

 correctness doubtful. 



* Ancell's Lectures on the Blood. The Lancet, 1840, p. 889. 



