PULVERES. MASSyE. 63 



Make trial Seidlitz Powders as follows: Mix 15 Gm. dry, finely powdered sodium 

 bicarbonate intimately with 45 Gm. dry, finely powdered potassium and sodium tar- 

 trate. Divide the mixture into 6 equal parts, and wrap each part in a separate blue 

 paper. 



Divide 13 Gm. dried, finely powdered tartaric acid into 6 equal parts, and wrap 

 each part in a separate white paper. 



Keep these powders in a dry, well-protected container. Take one or two doses, 

 mixed in water, before breakfast, and note effect. 



MISTURffi. 



Mixtures are aqueous preparations containing insoluble substances, or those but 

 partly soluble. They are not to be filtered or strained, but are to be dispensed with a 

 "Shake" label. 



Prepare the official Mistura Cretse as follows : To 5 Gm. compound chalk powder 

 in a mortar gradual 'I \ add 10 mils cinnamon water, triturating the mixture until it is 

 uniform. Transfer to a graduate, and add water rinsings from the mortar until the 

 product measures 25 mils. 



Appearance _ 



Color 



Odor 

 Taste 



Mistura CreUe was formerly a favorite antacid, but has fallen somewhat into 

 disuse. The average dose is 15 mils, using a -freshly prepared mixture only. Take a 



single dose of your preparation, 3 hours after meals, and note effects, 



The other official Mixture is Mistura Glycyrrhizje Composita, or "Brown Mix- 

 ture" an antiquated, ridiculous, "shot-gun" conglomeration, containing at least 15 

 different ingredients. It should be discarded forthwith. 



MASS^E. 



Masses are solid preparations of such soft cohesiveness that they may be formed 

 readily into pills. 



Prepare the official Massa Ferri Carbonatis (Vallet's Mass) as follows: Dis- 

 solve 10 Gm. ferrous sulphate in 20 mils boiling, distilled water; add 2 mils syrup; 

 filter, and let cool. Dissolve 4.6 Gm. monohydrated sodium carbonate in 20 mils boil- 

 ing distilled water, filter, and let cool. When both solutions are cold, place the sodium 

 solution in a flask of 50 mils capacity, and gradually add the iron solution, agitating 

 frequently until there is no further evolution of carbonic gas. Fill the flask with dis- 

 tilled water, cork, and set aside until the subsidence of the ferrous carbonate is com- 

 plete. Pour off the supernatant liquid, and, by decantation, wash the salt with a mix- 

 ture of syrup, i part, and distilled water, 19 parts, until the washings no longer have a 

 salty taste. Drain the precipitate on a cloth strainer, express all the water possible, 

 and mix with the precipitate 3.8 Gm. clarified honey and 2.5 Gm. sugar; then, with 

 constant stirring, evaporate in a tared dish over a water bath, until the completed 

 product weighs 10 Gm. ^J 



This preparation should contain not less than 35% FeCOs. 



