722 
AMERICAN PHARMACEUTICAL ASSOCIATION. 
mercury and iodohydrargyrate of potassium produce white compounds, in¬ 
soluble in water and soluble in alcohol. The double salt formed with chlo¬ 
ride of platinum is, on the contrary, soluble in water, and but very slightly sb 
in alcohol. Emetine is also precipitated by molybdate of ammonia, and its 
salts are decomposed by basic acetate of lead. 
The analysis of emetine by Pelletier and Dumas in 1823 led to the formula 
C 30 H 22 NO 8 , but as this base does not form crystallizable salts, its saturating 
power was not determined. M. Lefort has therefore made several analyses 
of some of the salts of emetine for the purpose of ascertaining the true ra¬ 
tional formula. Sulphuric and hydrochloric acids were carefully saturated 
with very pure emetine; the solutions, which were neutral to litmus paper, 
were evaporated and dried over lime and sulphuric acid. The resulting salts 
assumed the form of brownish friable transparent substances without any 
trace of crystalline form. The analyses of these compounds has led M. 
Lefort to double the numbers given above, and to write the formula of eme¬ 
tine as Cgo 
Ferric Iodate. 
Professor Cameron, of Dublin, has recently introduced the iodate of the 
peroxide of iron into medicine. It is given in doses of from 2 to 5 grains, 
and is intended in certain cases to replace the more changeable iodide of 
iron. 
It may be well to state, therefore, that ferric iodate is readily prepared bv 
precipitating a solution of iodate of potash with perchloride of iron. If 
5 11. drs. of liq. ferri perchlor. fort, be diluted with 4 oz. of water, and added 
to a solution of 1 oz. of iodate of potash in 10 oz. of water, a white or almost 
white precipitate is thrown down, which may be collected, washed with a 
small quantity of water, and dried at a gentle heat. Excess of the iron salt 
must be avoided, as it is capable of redissolving the precipitate. Iodate of 
potash may be prepared for this purpose by the process given in the British 
Pharmacopoeia for the test solution. Eerric iodate is stated to be soluble in 
500 parts of water, and to have the composition, according to the analysis of 
Bammelsburg, of Ee 2 0 3 2I 2 0 5 8H 2 0. 
AMERICAN PHARMACEUTICAL ASSOCIATION. 
SEVENTEENTH ANNUAL MEETING. 
The following letter has been forwarded to the members of the American Pharmaceu¬ 
tical Association and many friends in this country. We publish it in the hope that it 
may induce exhibitors to forward contributions from this country :— 
Dear Sir, —The exhibition of objects relating to Pharmacy and the collateral 
scieuces has become a prominent and interesting feature of the Annual Meeting of this 
Association. 
As an annual exponent of the progress of chemical and pharmaceutical industry, the 
Exhibition is replete with interest and instruction to the pharmacist; while to the 
manufacturer and wholesale dealer the occasion affords an excellent opportunity to make 
his name and his goods known to the trade. 
The next meeting of the Association will be held in this city, commencing Tuesday, 
September 7, 1869. The importance of Chicago as a commercial centre, in connection 
with the fact that this will be the first meeting of the Association in this section of the 
country, it is confidently expected will attract a large attendance. Exhibitors therefore 
w ill find it to their interest to make a liberal display. A notice of the articles exhibited 
will be published in connection with the annual proceedings. 
