93 
It might be well to mention here with regard to the veri- 
fication of these figures, that the analysis of each sample 
which deviated beyond five grains in the potassium iodide? 
or zinc sulphate, from the prescribed amount, was repeated, 
and the result, of the second analyses found in each case 
to agree with that of the first. The specific gravities of all 
the lotions closely coincided with the amounts of zinc sul- 
phate found, but in the mixtures, owing to the different 
amounts of spirit of chloroform which had been added, on 
the one hand, and the difference in the actual composition 
of that spirit of chloroform on the other, the specific gravity 
was no indication to the quantity of potassium iodide pre- 
sent. In looking over the above table it will be seen that 
only two druggists out of the eighty-one have given exactly 
the required weight of potassium iodide; thirty-four have 
given more than the prescribed amount, and forty-five less; 
but it may be of further interest to notice that when the 
whole of the quantities of potassium iodide given by the 
eighty-one different druggists are added together that the 
total quantity comes to 220|- grains less than it would have 
been if each druggist had dispensed the exact quantity. 
Again, in the lotion, only one druggist out of the eighty- 
one gave the exact weight of zinc sulphate; forty-three 
have given more than the prescribed amount, and thirty- 
seven less ; and when the whole of the quantities of the zinc 
sulphate given by the eighty-one different druggists are 
added together it comes to only 12 J grains more than it 
would have been if each druggist had dispensed the exact 
quantity. This resum4 seems to show that a larger per- 
centage of druggists have given less weight for the more 
expensive drug, viz,, potassium iodide, than for the zinc 
sulphate, the value of which is infinitesimally small, but 
still, no one can come to the conclusion that this is really 
done with dishonest intention in the large majority of cases, 
