BOKIC ACID AND BOKAX. 177 



the preservative period, 59.579 grams, and during the after period, 

 54.541 grams daily. There appears in this instance to be a decided 

 tendency on the part of the preservatives to diminish the quantity of 

 total solids eliminated by the kidneys, and this diminution, as might 

 well be expected, continues during the after period. 



Generally it may be said that in the case of Series IV the adminis- 

 tration of the preservative had scarcely &ny appreciable effect in 

 changing the volume of the urine, and the slight changes noted may 

 well have been due to changes in the amount of liquid ingested rather 

 than to the preservative itself. On the other hand it is seen that in 

 regard to the quantity of total solids eliminated the general effect of 

 the preservative is restrictive. The influence of the preservative 

 upon the quantity of salt eliminated is not marked, and a comparison 

 of the data would be incomplete without an accurate statement respect- 

 ing the quantity consumed in the food. 



SERIES V. 



The data for this series are incomplete by reason of the withdrawal 

 of No. 4 and the illness of Nos. 2 and 6. A comparison is best made, 

 therefore, of the three who completed the period, in so far as the col- 

 lection and examination of the urine is concerned. The data are given 

 in Table XXXIX (p. 192). 



The average quantity of urine voided by No. 1 during the fore 

 period is 842 cc, containing an average of 60.83 grams of total solids, 

 of which 6.89 grams are common salt. The average quantity of urine 

 voided by No. 1 during the whole preservative period, extending from 

 May 2 to June 20, inclusive, is 804 cc, containing 60.02 grams of 

 solids, of which 7.62 grams are common salt. In the after period the 

 average quantity of urine voided is 789 cc, containing 59.64 grams 

 of total solids, of which 7.73 grams are common salt. 



The data for No. 2 are not discussed, as no preservative was given 

 him after June 11, on account of illness. 



In the case of No. 3 the average volume of urine excreted in the 

 fore period is 785 cc, containing 50.56 grams of total solids, of which 

 6.23 grams are common salt. During the preservative period the 

 average volume of urine excreted by No. 3 is 834 cc, containing 52.42 

 grams of total solids, of which 6.64 grams are common salt. During 

 the after period the average volume of urine secreted by No. 3 is 

 893 cc, containing 56.55 grams of total solids, of which 7.21 grams 

 are common salt. 



No complete data were obtained for No. 4, who withdrew from the 

 table on May 25 and left the city. 



In the case of No. 5 the average volume of urine secreted during 

 the fore period is 869 cc, containing 64.16 grams of total solids, of 

 which 5.49 grams are common salt. During the preservative period 

 4242 No. 84, pt 104 12 





