OF THE SULPHATES IN THE URINE. 
255 
water made at a quarter to 2 p.m. was thrown away. From four to a quarter past 6 
moderate and sometimes strong exercise was taken. 
Water passed at 4 p.m. filtered 
Spec. gr. 
. 1029*52 
Sulphate of baryta. 
8*76 grs. per 1000 grs. of urine. 
Water passed at 6^ . . 
. 1031*18 
r 11*26 
1 11*23 
Water passed at 10:j . . 
. 1029*04 
12*34 
(15.) Nothing whatever was taken from dinner the preceding day, which consisted 
of bread and meat, until dinner this day. Water made at 1 p.m. thrown away. From 
3 to 6, at times, gentle exercise was taken. 
Water passed at 3 p.m. filtered 
Spec. gr. 
. 1024*78 
Sulphate of baryta. 
5*48 grs. per 1000 grs. of urine. 
Water passed at 6 ... 
. 1026*88 
7-03 
Water passed at 1 1 ... 
. 1027-50 
9*34 
(16.) Nothing was taken from 
dinner the preceding day to dinner this day. The 
water passed at 1 p.m. was thrown 
away. From 3 to 6 strong exercise was taken. 
Water passed at 3 p.m. filtered 
Spec. gr. 
. 1021*20 
Sulphate of baryta. 
3*27 grs. per 1000 grs. of urine. 
Water passed at 6 ... 
. 1019*10 
r 3*55 
1 3*47 
Water passed at 10^ clear . 
. 1027-00 
8*00 
From these numbers it appears that food has more influence on the sulphates 
than exercise has. (14.) shows that exercise has a decided effect in increasing the 
sulphates. The increase is less marked in (15.) ; the same is seen in (16.) to a much 
less degree in consequence of the diminution of the specific gravity. 
III. The influence of different medicinal substances admits of a clearer demonstra- 
tion. 
(a.) (17.) Breakfast as before at 9 a.m. Dinner at p.m. At 1 p.m. thirteen drops 
of sulphuric acid, specific gravity =1786*4, equivalent to above 1:^3 of dilute sulphuric 
acid, were taken in water. 
Spec. gr. 
Sulphate of baryta. 
Water passed at 1 p.m. clear . . 
1027*6 
7*51 grs. per 1000 grs. of urine. 
Water passed at 3 ... 
1028*7 
9*75 
Water passed at 6^ ... 
1027-9 
10*36 
Water passed at 10 ... 
1031*5 
12*15 
(18.) Breakfast as before. Dinner 
at 6 P.M. 
At 1 P.M. rather less sulphuric acid 
was taken. 
Spec. gr. 
Sulphate of baryta. 
Water passed at 12^ P.M. . . . 
1022*5 
4*07 gi'S. per 1000 grs. of urine. 
Water passed at 3 .... 
1022*2 
5*28 
Water passed at 6 .... 
1021*9 
6*19 
Water passed at 10^ .... 
1028*1 
2 L 2 
10*66 
