72 
SELECTED ARTICLES. 
Couerbe, and have lately repeated it, with precisely the same 
results as regarded the carbon and hydrogen, but obtained ra- 
ther less nitrogen. 
Paramorphia. Morphia^ (Lie big.) 
Carbon 71,310 72,20= 2 atoms. 
Hydrogen 6,290 6,24=36 " 
Nitrogen 4,408 4,92= 2 " 
Oxygen 17,992 16,66= 6 « 
The analyses of morphia by different able chemists differ 
much more from each other in their results than the above. 
As paramorphia does not form crystallisable salts with the 
acids ; it has not been possible for us to determine its capacity 
of saturation, which would have thrown much light on the 
subject. 
As it would be very interesting to ascertain the action of 
paramorphia on the animal economy, I transmitted some to 
M. Majendie, who kindly undertook a series of experiments 
with it. 
VII. 
Analysis of Opium collected in France. 
The presence of morphia in the capsules of the poppy raised 
in France, has lately been announced. M. Tilloy, of Dijon, 
and M. Petit, of Corbeil, have both given interesting notices 
of this fact ; but few have attempted to obtain opium. That 
of which I am about to give the analysis, came from the estate 
of General Lamarque, at Eyres in the Department of Landes. 
This opium is not an extract made from the capsules, it is 
the juice derived from incisions, and dried in the open air. 
Sometime before his death, General Lamarque transmitted a 
specimen to M. Caventou, who was kind enough to present 
it to me. 
This opium is of a very dark reddish brown colour, when 
dry it is brittle, its taste resembles that of Smyrna opium; on 
solution it leaves less residue than the Asiatic opiums. 
Sixty grammes were dissolved in distilled water; the small 
