ON BISULPHURET OF CARBON. 
181 
fully kept ; and I am inclined to think that the spirits made 
from these oils are quite as good, and the process for mak- 
ing them is certainly much more simple and easy, when 
the oils, in the best state in which they can be met with in 
commerce, are merely dissolved in the spirit. Spirit of 
lavender is directed, in the Pharmacopoeia, to be distilled 
from the lavender flowers, while spirit of cinnamon and 
spirit of rosemary are ordered to be made by distillation 
with the essential oils. I should conceive that spirit of cin- 
namon ought to be distilled directly from the cinnamon- 
bark, because the oil of cinnamon is very liable to become 
oxidized, and in this state it acquires very altered charac- 
ters ; but spirit of lavender would be generally better when 
made by dissolving the best commercial oii of lavender in 
spirit, than by distilling the flowers obtained from the 
herbalist. I am informed by a gentleman of considerable 
experience that the average quantity of essential oil of 
lavender, equivalent to two and a half pounds of the flow- 
ers (the quantity ordered in the formula of the Pharmaco- 
poeia for one gallon of the spirit) is 3iij,grs. xxix. It would 
be a great advantage to those Pharmaceutists who are not 
provided with the arrangements for the distillation of spirits? 
or who are not allowed to conduct such processes by the 
regulations of the insurance offices, if they could make such 
preparations as compound tincture of lavender and com- 
pound camphor liniment, by mere admixture and solution 
of the ingredients. — Pharmaceutical Journal. 
ART. XXXIX.— ON THE PREPARATION OF BISULPHURET 
OF CARBON. 
By M. Chandelon. 
The numerous applications which have recently been 
made of bisulphuret of carbon have rendered it important 
16 
