PHARMACEUTICAL NOTICES, 265 
of powdered citric acid, be added and the bottle well 
corked. 
M. Bardet of Valengay suggests the following : 
Water sufficient to fill a seidlitz bottle. 
Dissolve the acid in one-sixth of the water, triturate the car- 
bonate of magnesia with the remainder, and add to it half 
the acid solution, and when the effervescence has ceased, 
pour it in the bottle with the syrup, and then add the rest 
of the acid solution and cork instantly. 
M. Massignon of Paris, recommends after introducing 
the solution of citrate into the bottle, to add first 75 grains 
of recently precipitated carbonate of magnesia, and then 105 
grains of citric acid in crystals, and cork quickly. 
MM. Garot, Marchand, and others have suggested for- 
mulae differing but little from the above ; in fact a perfect 
mania appears to exist in Paris for this substitute for Epsom 
salt. 
Whilst the citrate of magnesia has found so many advo- 
cates in France, several writers have appeared in favour of 
the tartrate, which is stated to possess the same purgative 
power, and to be equally devoid of bitterness. M. Aviat 
directs 5 parts of tartaric acid to be dissolved in 80 parts of 
water, and one part of recently calcined magnesia, suspen- 
ded in 5 parts of water, added. 
A paper on a method of depriving Epsom Salt of its bit- 
ter taste, will be found in another part of this number. 
Sub carbonate of magnesia, 
Citric acid, 
Lemon Syrup, 
24 
