COLLEGE OF PHARMACY OF PARIS. 
159 
5th. Some alkaloids are obtained by the desulphura- 
tion of certain essences or sulphuretted alkaloids. Thus 
sinamin and sinapolin are obtained from essence of mustard. 
6th. In fine, it is possible by submitting the alkaloids as 
found in nature to certain reactions, to obtain a great 
number of other products possessing equally alkaline pro- 
perties. To this class belong especially, all the products 
obtained by substituting chlorine, bromine, iodine, &c. for 
one or more equivalents of hydrogen in the compound. 
Influenced by these considerations, the Society of Phar- 
macy of Paris, propose a prize of 4000 francs for the chemist 
who shall discover the means of preparing Quinia, arti- 
ficially, that is to say, without employing in its prepara- 
ration, either cinchona bark or other organic matter con- 
taining quinia ready formed. 
In case this desideratum shall not be attained, the prize 
will be awarded to the author of the best work making 
known a new organic product, natural or artificial, having 
therapeutical properties equivalent to those of quinia, and 
which it will be possible to substitute for it in commerce. 
The essays to be addressed to the Secretary General of 
the Society before the 1st of January, 1851. 
Candidates who desire to keep their processes secret may 
envelop, under seal, the descriptions which are not designed 
to be made public. On the demand of such an one, the 
commission will designate one of its members, who will 
take the sole cognizance of the proceedings; he will attend 
its execution in his presence. Verbal description of the 
operations shall be heard, and placed under seal in the 
hands of the General Secretary of the Society, The com- 
mission will maintain the opinion of its delegate. 
In all cases the specimens of products obtained should 
be presented to the Commission and to the Society to be 
submitted to experiment, if judged desirable. The total 
quantity of the specimen should not be less than 250 
grammes. 
