70 



PuLvis Cretae Compositus 



Prepared Chalk 6.0 Gm. 



Acacia, in fine powder 4.0 Gm. 



Siigar, in fine powder 10.0 Gm. 



Mix the powder thoroughly by trituration and pass the product 

 through a No. 60 sieve. 



PuLvis Bpfervescens Compositus — Seidlitz Powder 



Sodium Bicarbonate, dried and in fine powder 2.5 Gm. 

 Potassium and Sodium Tartrate in fine powder 7.5 Gm. 

 Tartaric Acid, in fine powder 2.3 Gm. 



Mix the sodium bicarbonate intimately with the potassium and 

 sodium tartrate, and wrap in a blue paper. 



Wrap the tartaric acid in a separate white paper. 



Keep the powders well closed, in a dry place. 



These powders as commonly called "Seidlitz Powders". They 

 are of much use in human practice as a purgative. The two powders 

 are to be dissolved in a glass of water and drunk while the gas is be- 

 ing evolved. The tartaric acid acting upon the sodium bicarb- 

 onate liberates carbonic acid gas and causes the effervescence. 



TRITURATIONBS— TRITURATIONS 



These preparations were suggested by similar preparations used 

 in homeopathy. The general formula for triturations as directed 

 by the Pharmacopoeia is. 



Substance 10.0 Gm. 



Sugar of Milk 90.0 Gm. 



Weigh the substance and the sugar of milk separately; then 

 place the substance, previously reduced if necessary to a moderately 

 fine powder, in a mortar ; add about an equal measure of sugar of 

 milk, mix well by means of a spatula and triturate the powders 

 thoroughly together. Then add fresh portions of sugar of milkr 

 from time to time, until the whole is added, and continue the trit- 

 uration after each addition until the substance is intimately mixed 

 with the sugar of milk and reduced to a fine powder. 



