10 On Waters distilled from inodorous Plants. 
After the most nauseous distillation, all the parts of the 
alembic may be so cleaned in a quarter of an hour, that the 
most delicate liqueur may be immediately distilled in it. 
Such is the result of the experiments of more than thirty 
years. J alone know what this experience has cost me; 
I shall, however, consider myself in some measure indem- 
nified for my labours, if these hints shall be of any service to 
the progress of the arts and sciences. 
Note by M. Deyeux.—I do not rightly understand what 
the author means in the beginning of the above memoir. 
He seems desirous that the question relative to the efficacy 
of waters distilled from inodorous plants should be stated in 
precise terms. It appears to me that this question cannot 
be presented in the form of a problem, since it has been 
proved, by a multiplicity of experiments, that it is highly 
improper to doubt the efficacy of waters distilled from these 
kinds of plants. 
.As to the observations relative to the necessity of distilling 
these waters in B. M., or at least of rectifying them in this 
manner, I am not only of opinion, that in some cases 
such a process may be useful, but I also think that the 
above method is not always sufficient to obtain distilled 
waters in a state which may bid defiance to all alteration. 
I have often had occasion to distil waters in B. M.; and in 
spite of this precaution I have remarked that some of these 
waters become turbid at the end of a month, and that they 
often acquired a disagreeable smell and taste. 
To conclude: As the author announces a work upon di- 
stillation in general, and as he also promises us some details 
upon the best form of alembics, I shall wait for the pub- 
lication of his memoir, which will, without doubt, contain 
the results of experiments made with that care and acute- 
ness which characterize every production of M. Descroi- 
zilles. 
iil. Ex- 
