98 
Table III. 
Silver Nitrate Prescription. 
No. 
District. 
Description 
of shop. 
Actual mea- 
sure 
of the lotion 
dispensed. 
(In 
fluid grains.) 
Actual amount 
of 
Silver Nitrate 
weighed out 
hy 
the Druggist. 
strength 
of 
the lotion 
calculated on 
447 '5 gr. 
Price. 
The lotion as prescribed. 
447-5 
60-0 
60-0 
s. d. 
Manchester : 
1 
1 
Moss Lane W. 
410 
59-8 
65-3 
1 0 
2 
do. London-rd. 
Low. 
425 
44-8 
47-2 
1 0 
3 
do. Oxford-st... 
425 
57-4 
60-4 
1 6 
Liverpool : 
4 
Gt. Homer-st.. 
Low. 
433 
73-2 
75-6 
1 4 
5 
London, E.C.... 
365 
59-0 
72-3 
0 8 
. The figures in this table show the amounts of anhydrous 
silver nitrate contained in the solution. 
These show that not one of them has given the weight 
of this drug accurately; one came within the range of 
practical accuracy ; three came within the range of 5 grains, 
and two made inaccuracies of upwards of 13 grains. In 
measuring, none came within the range of absolute accuracy, 
viz., 5 grains either way, and only one came within the 
range of practical accuracy. In strength, one came within 
the range of practical accuracy, the others made errors of 
over 5 grains. 
The next prescription was the following : — 
R. Quin. Sulphat 3j 
Acid. Hydrochlor. dil 3 j 
Aq ad. gij 
M. Sig. One teaspoonful to be taken in a wineglass of water 
twice a day. 
Two of these prescriptions were dispensed, and three 
more containing the same amounts of quinine sulphate and 
hydrochloric acid, but made up to 6 instead of 2 ounces 
measure. 
