812 INFLUENCE OF FOOD PRESERVATIVES ON HEALTH. 



indication in this case that the administration of the preservative has 

 increased the volume of the urine 68 cc daily. This increase is partly 

 lost in the after period, but the average daily quantity excreted is 

 still greater than in the fore period. The specific gravity of the urine 

 falls slightly during the preservative period and rises during the after 

 period, but does not quite reach the average of the fore period. The 

 total quantity of solids excreted in the urine increases by 2.6 grams 

 daily during the preservative period, falling during the after period, 

 but not to the average amount excreted in the fore period. 



The data for No. 5, as already explained, are incomplete. They 

 show an average daily excretion of urine during the single fore sub- 

 period of 936 cc, in the preservative period of 1,049 cc, and in the 

 after period 862 cc. The specific gravities of the urine for the three 

 periods are 1.0232, 1.0202, and 1.0200, respectively. The average 

 daily quantities of solids excreted in the urine are 53.2 grams, 52.3 

 grams, and 42. 1 grams, respectively. These data show a large increase 

 in the volume of the urine during the administration of the preserva- 

 tive, attended by a very marked decrease in specific gravity. There 

 is a very marked decrease in the volume of urine during the after 

 period, amounting to 187 cc per day, as~compared with the preserva- 

 tive period. There is also a decrease in the total solids excreted, 

 which are 0.9 gram less than during the fore period and 10.2 grams 

 less during the after period than in the preservative period. 



In the case of No. 6 the data show the average daily excretion of 

 838 cc of urine during the fore period, 930 cc during the preservative 

 period, and 933 cc during the after period. The specific gravities of 

 the urine for the three periods are 1.0276, 1.0276, and 1.0275, respec- 

 tively, showing practically no change. The total solids excreted 

 daily in the urine amount to 56.7 grams in the fore period, 62.9 grams 

 in the preservative period, and 62.8 grams in the after period. These 

 data show a marked increase in the volume of the urine during the 

 preservative period, which is continued and even slightly increased 

 during the after period. There is a corresponding increase in the 

 quantity of total solids eliminated, and this increased rate of elimina- 

 tion continues through the after period. 



In the case of No. 7 the volume of urine excreted in the fore period 

 is 930 cc and in the first, second, and third subperiods of the preserva- 

 tive period 1,038 cc. The specific gravity in the fore period is 1.0210 

 and in the preservative period 1.0202. The quantity of total solids 

 daily excreted is 47.7 grams in the fore period and 53.6 grams in the 

 preservative period. The data are not complete, but show an increase 

 in both the volume of the urine and the quantity of solids excreted. 



The volume of urine excreted by No. 8 is 1,536 cc in the fore period, 

 1,959 cc in the preservative period, and 2,048 cc in the after period. 



