62 



EMULSA. 



PULVERES. 



the same manner, next add successive portions of water until the product measures 

 100 mils. 



This preparation provides the best medium for administering "Spirits of Turpen- 

 tine" in those rare instances where its internal use seems indicated. Dose, 2 mils. 



Properties of your Emulsion: 



Appearance _ 



Color _ .' 



Odor 



Three other Emulsions are official : 



Taste 



Microscop. appearance 



PULVERES. 



Powders are triturated mixtures of dry medicinal substances. Except for Seid- 

 litz Powder, the official powders are all insoluble. 



Prepare the official Pulvis Cretae Compositus as follows: Thoroughly mix by 

 trituration 2 Gm. finely powdered acacia, 5 Gm. powdered sugar, and 3 Gm. prepared 

 chalk. When intimately mixed, pass through a No. 60 sieve. (Reserve for next 

 group. ) 



Examine the following official Powders : 



