OF THE ACIDITY OF THE URINE. 
269 
Description of the Plates. 
PLATE XVI. 
The variations of the acidity of the urine during seventy-two hours when a mixed 
diet was taken. 
PLATE XVII. 
The comparison of the variations of the acidity of the urine on two mornings, on 
the first of which no breakfast was taken, and on the second a mixed diet. 
PLATE XVIII. 
The variations of the acidity of the urine during seventy-two hours when animal 
food only was taken. 
PLATE XIX. 
The variations of the acidity of the urine during seventy-two hours when vegetable 
food only was taken ; at the end of that time animal food only was taken, and for 
eight hours afterwards the acidity of the urine is given in this Plate. 
PLATE XX. 
The variations of the acidity of the urine during seventy-two hours when nine 
drachms of dilute sulphuric acid and mixed diet were taken. 
PLATE XXL 
The variations of the acidity of the urine during 120 hours. In the first twenty- 
four hours no liquor potassse was taken ; in the following seventy-two hours upwards 
of an ounce of liquor potassse was taken with a mixed diet, and for the last twenty- 
four hours no liquor potassse was taken. 
PLATE XXII. 
The variations of the acidity of the urine during 120 
four hours no tartaric acid was taken ; in the following 
of dry and pure tartaric acid were taken with a mixed 
four hours no tartaric acid was taken. 
PLATE XXIII. 
The variations of the acidity of the urine during 132 hours. For the first twenty- 
2 N 
hours. For the first twenty- 
seventy-two hours 354 grains 
diet, and for the last twenty- 
MDCCCXLIX. 
