256 
DR. BENCE JONES ON THE VARIATIONS 
(19.) Breakfast as before, 
acid as before. 
Dinner at 6 p.m. 
At 1 P.M. thirteen drops of sulphuric 
Water passed at 1 p.m. 
Spec. gr. 
. . . 1018*8 
Sulphate of baryta. 
3*48 grs. per 1000 grs. of urine. 
Water passed at ^ to 3 
. . . 1012*6 
2*13 
Water passed at 6 
. . . 10177 
4*09 
Water passed at 10 
. . . 1026*2 
11*43 
(20.) Breakfast as before, 
acid taken as before. 
Dinner at 6 p.m. 
At 1 P.M. twenty drops of sulphuric 
Water passed at 1 p.m. 
. . . 1022*8 
4*83 grs. per 1000 grs. of urine. 
Water passed at 3 
. . . 1019*9 
4*99 
Water passed at 6 
. . . 1022*2 
6*79 
Water passed at lOj 
. . . 1021*3 
9*52 
(21.) Breakfast as before. 
Dinner as before. 
No sulphuric acid taken. 
Water passed at 3 p.m. 
. . . 1025*0 
7*08 grs. per 1000 grs. of urine. 
Water passed at 6 
. . . 1023*9 
5*88 
Water passed at 10^ 
. . . 1029*4 
10*79 
From experiment (17-) it seemed that the sulphates were slightly increased by the 
sulphuric acid which was taken. The other experiments hardly confirm this deduc- 
tion, and on this account I tried whether a course of sulphuric acid would give more 
marked results. 
(22.) After four days in which dilute sulphuric acid, specific gravity 1115*3, was 
taken ; three drachms the first day and two drachms the three following days. 
Breakfast and dinner the day after the 
course of 
sulphuric acid were the same as in 
the previous experiments. 
Water passed at 1 p.m. 
clear . . 
Spec. gr. 
Sulphate of baryta. 
1027*4 
7*51 grs. per 1000 grs. of urine. 
Water passed at 3 
filtered . 
1025*4 
8*73 
Water passed at 6 
clear . . 
1026*5 
8*72 
Water passed at 10^ 
filtered . 
1030*2 
11*99 
(23.) No sulphuric acid was taken on the day of experiment (22.). For the next 
three days three drachms of dilute sulphuric acid were taken the first day, two 
drachms the second, and three drachms the third day. 
The following day (seventeen drachms of dilute sulphuric acid having been taken 
in the eight previous days) the breakfast and dinner were as before. 
Spec, gr. 
Sulphate of baryta. 
Water passed at 
1 
p.m. filtered . 
1026*0 
7‘37 grs. per 1000 grs. of urine. 
Water passed at 
3 
* 
1025*9 
7*22 
Water passed at 
6— 
clear . . 
1023*3 
5*43 
Water passed at 
10 
filtered . 
1028*1 
10*66 
