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SELECTED ARTICLES. 
morphia appears to exert no action on the animal economy. 
This is not the case with paramorphia, which acts tetanically 
in doses of a grain. It is difficult to distinguish it in this re- 
spect from brucia, or even strychnia; though I have not com- 
pared its relative activity with these two substances. It 
tetanizes and kills dogs in a very short time when injected 
into the jugular vein or pleura, in doses of a grain. I do not, 
therefore, see any benefit in the new substances as remedies, 
though the analogy of the physiological action of paramorphia 
with that of strychnia, merits attention." 
It follows from the above: 
1st. That there can be no doubt of the existence of the two 
new principles discovered by me in opium, — narceine and 
paramorphia. 
2d. That the codeine detected by M. Robiquet is not the 
result of a reaction; that from the same portion of opium, we 
may obtain narcotine, morphia, narceine, meconine, codeine 
and paramorphia. 
3d. That paramorphia is one of the most active principles 
of opium. 
4th. That the crystalline substance described by M. Du- 
blanc is a mixture of codeine and meconine. 
5th. That pseudo-morphia is a substance sometimes to be met 
with in opium, but that at present we are ignorant under what 
circumstances it is produced. 
6th. That the French opium, collected in the Department 
ofLandes, is richer in morphia than Turkey opium; that it 
also contains codeine, but is destitute of narcotine. 
Journ. de Pharm. Nov. 1835. 
