AND PHARMACOPOEIA. 4G7 



of decoction is to extract as much as possible of the virtues of 

 certain substances, whatever they may be, it is advisable either 

 to reduce them to powder, to cut them in small pieces, or to 

 bruise them, before they are submitted to the process of decoction. 



Decoction of Marsh-Mallows. — Decoctiua Althece. 



Take of dried marsh-mallows 6 ozs. 



Water 7 lbs. 



Boil down to five pounds ; strain the decoction, and, after the 

 fieces liave subsided, pour off the clear liquor. 



As marsh-mallow roots contain nothiniji; soluble in water but 

 mucilage, this is merely an emollient, and may be administered 

 in inflammation of the bladder or kidneys, in irritation of the 

 mucous membrane of the stomach and bovv^els, or of the oesopha- 

 gus and trachea. 



Decoction of Camomile, compound. — Decoctum Anthemidis 



Compositian. 



Camomile flowers, dried 1 oz. 



Caraway seeds, bruised H ozs. 



Ginger, bruised 1^ ozs. , 



Water 1 qt. 



Boil for ten or fifteen minutes ; a good stomachic drench. 



Decoction of Oak Bark. — Decuctum Quercus. 



Oak bark, bruised 2 ozs. 



Water 1 qt. 



Boil gently for ten minutes ; a good vehicle for tonic medi- 

 cine. 



Decoction for Fomentation. — Decoctum pro Fomento. 



This is made by boiling bay leaves, camomile flowers, worm- 

 wood, and southernwood, in a sufl[icient quantity of water. 



Decoction of Poppy-Heads. — Decoctum Capsularum 



Papaveris. 



This is made by boiling the dry capsules, or heads, of the 

 white pojipy, without the seeds, and broken up in small parts, 

 in a sufficient quantity of water; i. e. about twoor three ounces 

 to a quart of water. This decoction is used as an anodyne fo- 

 mentation. 



Decoction of Barley. — Decoctum Hordei. 



Barley water is made by boiling pearl barley in water. This 



H H 2 



