100 
The third and last prescription was the following : — 
R. Ferri et Quin. Citrat 3 ij 
M 
Sig. ^ss, ter die. 
Two of these prescriptions were dispensed, and one con- 
taining the same amount of salt, but made up to 2 instead 
of 6 ounces. 
The results of the analysis are as follows : — 
Table V. 
Ikon and Quinine Citrate Prescriptions. 
No 
District. 
Description 
of shop. 
Actual mea- 
sure 
of the mixture 
dispensed 
an 
fluid grains.) 
Actual amount 
of 
Quinine and 
Iron Citrate 
weighed out 
by Druggist. 
Strength 
of the mixture 
caclulated on 
the 
2690 grains. 
Price. 
The mixture as prescribed. 
2690 
120 grs. 
120 grs. 
s. d. 
1 
Manchester : 
Hulme. 
2690 
122 
122 
1 6 
2 
London, E C. 
2570 
140 
146-5 
1 9 
No. 
District. 
Description 
of shop. 
Actual mea- 
sure 
of the mixture 
dispensed 
(In 
fluid grains.) 
Actual amount 
of 
Quinine and 
Iron Citrate 
weighed out 
\ by Druggist. 
Strength 
of the mixture 
calculated 
on the 
940 grains. 
Price. 
The mixture as prescribed. 
940 
]20 
120 
s. d. 
3 
Manchester : 
Oxford.road. 
985 
107 
102-1 
2 6 
The figures in these tables represent the dry iron and 
quinine citrate, plus 105 per cent, the amount which we 
found the salt to lose on drying at 212° F. 
Not one of these three came within the range of absolute 
or practical accuracy in either the weight or the strength of 
solution. One, however, measured with absolute accuracy, 
