MINUTES OF THE COLLEGE OF PHARMACY. 255 
of liquid ammonia, in order to ascertain the pure quinia con- 
tained in the Sulphate, as recommended by J. Farr, and it 
gratifies them exceedingly to be able to say, that all the re- 
sults have shown, that the sulphate sent by M. Delondre is 
an excellent preparation, and as pure as any heretofore intro- 
duced into our market. 
In making this statement, we would also observe that al- 
though our former analyses have been proved to be correct, it 
is more than doubtful whether the article examined by us in 
December last, was manufactured by M. Delondre. In our 
former report we candidly expressed our opinion that we did 
not believe that the article referred to had been intentionally 
adulterated, and attributed the impurity of it to carelessness 
or fraud on the part of the workmen employed by M. De- 
londre. This gentleman, however, in the most open and 
honourable manner, has assumed the whole responsibility, by 
stating that all the operations in his manufactory were carried 
on under his own eye, and completely absolving his workmen 
from participation in any adulteration, if such had been prac- 
tised. 
Naturally anxious however of removing any stigma from 
his character, he closely investigated the different steps of the 
process employed by him in the manufacture of Quinia, and 
discovered that the product obtained from the washings of the 
animal black (used for depriving it of colour) and of the filters, 
were to a certain degree rendered impure by the presence of 
salts of lime and magnesia, but that the proportion of these 
impurities was by no means so great as that noticed by your 
Committee on the Quinia examined by them in December last. 
In conclusion, your committee would state that, in conse- 
quence of the assertion made by Dr. Chilton, in a letter to 
the editor of our Journal, that Feidler & Co., the agents of 
M. Delondre, in New York, had ascertained that the adul- 
terated quinia examined by J. Farr and ourselves had not 
been imported by them, but was a spurious article sent from 
London, and bearing forged labels and seals. We were induced 
to compare the bottles that had contained it with those trans- 
