534 INFLUENCE OF FOOD PKESERVATIVES ON HEALTH. 



gravity is notably higher in the preservative period, and in the after 

 period it is still higher than in the fore period. The weight of the 

 solids excreted is slightty greater in the preservative period and still 

 further increased in the after period. 



SUMMARY FOR NINE MEN. 



The average effects produced upon the nine men who completed the 

 observations show that the volume of the urine in the preservative 

 period is almost the same as that of the fore period, being only 7 

 cubic centimeters greater. In the after period the volume is slightly 

 less than in the fore period, being diminished by 47 cubic centimeters. 

 The average specific gravity of the urine in the preservative period is 

 slightly higher than in the fore period and in the after period is again 

 slightly increased as compared with the preservative period. The 

 quantity of solids excreted is increased in the preservative period and 

 still further increased by half a gram a day in the after period. 



The general effect therefore upon the urine is that no notable change 

 is produced in the volume of the urine due to the administration of 

 the preservative. There is, however, a distinct increase in the specific 

 gravity of the urine under the administration of the preservative, due 

 to a decided increase in the weight of the solids excreted. This effect 

 is continued to a certain extent in the after period, during which even 

 a larger quantity of solids is excreted than during the preservative 

 period. 



It is just to conclude from the above data that the administration of 

 the salicylic acid increases the katabolic activities of the organs, result- 

 ing in an increased excretion of solid matters in the urine. 



