SULPHUROUS ACID AND SULPHITES. 813 



These data show again an increase in the volume of urine under the 

 administration of the preservative. The specific gravities are low, as 

 would be expected where so large a volume is excreted. The numbers 

 expressing the specific gravities for the three periods are 1.0162, 

 1.0133, and 1.0124. These figures are very low, and the specific 

 gravity is diminished in the preservative period and again in the after 

 period. The average daily weight of solids excreted is for the fore 

 period 61.2 grams, for the preservative period 63.5 grams, and for the 

 after period 61.5 grams, showing an increase in the excretion of total 

 solids, amounting to 2.3 grams per day. This increase disappears 

 during the after period. 



- The data for No. 9 show an average daily quantity of urine of 989 cc 

 for the fore period, 1,146 cc for the preservative period, and 1,075 cc 

 for the after period. The specific gravities for the three periods are 

 1.0251 for the fore period, 1.0237 for the preservative period, and 

 1.0251 for the after period. The average quantity of total solids 

 excreted is 60.7 grams for the fore period, 66.7 grams for the preserva- 

 tive period, and 66.2 grams for the after period. These data show a 

 marked increase in the volume of the urine during the preservative 

 period, attended with a slight decrease in specific gravity and an 

 increase of 6 grams daily of solid matter excreted. The increase in 

 solid matter continues during the after period, but with a tendency to 

 return to the conditions of the fore period. 



In the case of No. 10 the average daily volume of urine is 937 cc in 

 the fore period, 1,142 cc in the preservative period, and 1,230 cc in the 

 after period. The specific gravities for the three periods are 1.0257 

 for the fore period, 1.0197 for the preservative period, and 1.0193 for 

 the after period. These data show a great increase in the volume of 

 urine during the preservative period, which is accentuated during the 

 after period. The specific gravity rapidly falls in the preservative 

 period and is not increased during the after period. The quantity of 

 total solids excreted decreases 4.8 grams during the preservative 

 period, a part of which is regained during the after period. 



In No. 11 's case the volume of urine excreted during the fore 

 period is 1,321 cc, during the preservative period 1,361 cc, and during 

 the after period 1,307 cc. The specific gravities for the three periods 

 are 1.0221 for the fore period, 1.0205 for the preservative period, 

 and 1.0221 for the after period. The quantity of total solids dimin- 

 ished notably during the preservative period, the decrease amounting 

 to a daily average of 3.4 grams daily. This was partially recovered 

 during the after period. 



In the case of No. 12 the average daily volume of urine excreted 

 during the fore period is 1,156 cc, during the preservative period 1,388 

 cc, and during the after period 1,123 cc. These data show a strong 



