274 
VARIETIES. 
to be used several times during the day in frictions around the orbits. 
Mr. Fronmuller also mentions having obtained very favorable results 
from the use of sulphate of cadmium, used according to the following formula 
as a collyrium in cases of opacity of the cornea: 
Take of Sulphate of Cadmium 20 centigrammes, (2 parts) 
Itosewater 45 grammes, (450 " ) 
Rousseau's or Sydenham's Laudanum accord- 
ing to circumstances, 2 to 6 grammes, (20 to 60 " ) 
This author also recommends the use of Tannin in collyrium and oint- 
ment, preferring it to the mineral agents usually employed ; as better sup- 
ported, and as producing more energetic contraction of the vascular tissue. 
The following is the formula he proposes for the ointment : 
Take of Tannin 40 to 60 centigrammes, f 4 to 6 parts) 
Washed Lard 25 decigrammes, ( 25 parts ) 
Mix. 
For the Collyrium, 
Take of Tannin 30 to 60 centigrammes, (3 to 6 parts) 
Distilled Water 60 grammes, ( 600 parts ) 
Rousseau's* Laudanum 2 to 4 gram- 
mes, ( 20 to 40 p. ) 
Mix. 
Journ. de Pharm., from Annales Oculistique. 
On the Constitution of Conia. By M. R. Wagner. — From the experi- 
ments of Mr. Blyth, it appears that, under the influence of oxidizing agents, 
conia furnishes butyric acid. This reaction expressed by the formula 
c ie H is Az. +4HO+40=C 3 H 8 O+Az. H 3 has induced Mr. Wagner to 
propose a hypothesis upon the constitution of conia. Founding his im- 
pressions upon the ideas of Mr. Hoffman, relative to the constitution of 
amidogen bases, [bases amidees,} (biethylamine, &c.,) the author thinks 
oonia to be ammonia, in which two equivalents of hydrogen are replaced 
by two equivalents of butyryle C 8 H 7 . The constitution of this volatile 
base is consequently expressed by the formula 
C 8 H 7 ] 
C ,6 H 15 Az. =C 8 H 7 IAz. 
H J 
Jour, de Pharm. from Jour, far Prackt. Chem. 
Sojyhisticated Pepper. — The sanitory commission, charged by the English 
Journal, the Lancet, to examine into the state of the alimentary substances 
found in commerce, report that the samples of pepper bought of the London 
spice dealers were contaminated by the admixture of mustard and flaxseed. 
* The Abbe Rousseau's Laudanum or drops, is a wine of opium prepared by fer- 
mentation, and highly charged with the active principles of the drug, being about 
four times the strength of the laudanum of the U. S. P., u e. containing one grain 
of opium to every six drops. 
