BORIC ACID AND BORAX. 175 



diminish the amount of total solids eliminated by the urine in spite of 

 the fact that the greater part of the boric acid exhibited passed out 

 of the body through the kidneys. This inhibiting effect, as seen, con- 

 tinues during the after period, as might have been expected by reason 

 of the fact that it required practically all of the after period to elimi- 

 nate the last traces of boric acid from the body. 



In No. 9's case the opposite effect is noticed, the amount of total 

 solids eliminated rising from" 61. 16 as the daily average of the fore 

 period to 63.67 as the daily average of the preservative period. There 

 is a loss, however, during the after period in this case, the quantity 

 of total solids eliminated falling to 60.72 grams per day. 



The data for No. 10 show that the quantity of total solids eliminated 

 during the fore period is 62.55 grams daily, during the preservative 

 period 58.82 grams, and during the after period 50.98 grams. In this 

 case, as with No. 8, there is a progressive decrease in the quantity of 

 total solids excreted, including the after period. 



As regards the common salt, in the case of No. 8 the quantity elimi- 

 nated daily during the fore period is 7.52 grams, during the preserva- 

 ive period 6.50 grams, and during the after period 4.83 grams, show- 

 ing a progressive diminution. 



The quantity of common salt eliminated by No. 9 during the fore 

 period is 6.44 grams, during the preservative period 7.42 grams, and 

 during the after period 7. 19 grams. In this instance we see an increase t 

 in the common salt eliminated during the preservative period, with a 

 tendency during the after period to restore the excretion to the rate 

 of the fore period. 



No. 10 during the fore period eliminates daily 7.65 grams of com- 

 mon salt, during the preservative period 7.22 grams, and during the 

 after period 6.48 grams. Therefore, in the case of No. 10 the data 

 obtained agree with those of No. 8, while in the case of No. 9 the 

 results do not agree with those of Nos. 8 and 10. 



A partial comparison may be made of Nos. 11 and 12, but by reason 

 of illness the administration of the preservative is of an irregular 

 character, and hence the data are not strictly comparable. 



In No. ll's case a disturbance of the bodily functions not due to the 

 administration of the preservative occurred immediately after the 

 regular fore period of Series IV. Therefore No. 11 received special 

 treatment. His fore period begins March 31, the preservative period 

 April 4, and the after period April 15. Comparing the fore period 

 with the preservative period we find a marked increase in volume of 

 urine, while the specific gravity is slightly decreased. The total solids, 

 however, rise from 35.41 grams daily to 52.64 grams, and the common 

 salt rises from 2.18 grams daily to 5.13 grams. In the after period of 

 No. 11 the specific gravity is still very low, namely, 1.020, There is 



