24 MEDICINAL USES OF HOPS. 



carbons, or alcohol is used for analogous purposes. The 

 extract of hops prepared as I have described is of a pasty 

 consistency, more or less thin in proportion to the essential 

 oil contained in it. 



It is soluble in water, but slowly and only in small 

 quantity. In order to increase its solubility in water, and 

 to give it a more convenient consistency for measuring 

 and transferring, sufficient alcohol is added to give it the 

 consistency of thin syrup. This is probably the best form 

 for a commercial extract of hops. This hop extract differs 

 in some important respects from the extracts of hops hitherto 

 known, and is therefore a new commercial product. It con- 

 tains all the matter of the hop plant which it is desirable to 

 use in the preparation of beer ; while the saline and albu- 

 menoid substances found in alcoholic and watery extracts are 

 wholly absent from it. The extract in its simple form is 

 solid when cold, pasty when warm, and quite fluid at the 

 boiling point of water." 



Mr. Emmet Kannal, in the * American Journal of Phar- 

 macy,' gives the following recipe to prepare glycerole of 

 lupuline : 



" Take of lupuline 1 troy ounce, alcohol 6 fluid ounces, glycerine 9 fluid 

 ounces, Curac,oa cordial 1 fluid ounce. 



" Mix the alcohol with 2 fluid ounces of glycerine, moisten the lupuline 

 with the mixture, pack it into a cylindrical percolator, and continue to add 

 this mixture until 8 fluid ounces of the percolate has passed; to this 

 add the remainder of glycerine, previously mixed with the CuraQoa, and 

 thoroughly mix the whole together. This will afford by careful manipula- 

 tion a very fine preparation rniscible witli any of the ordinary syrups or 

 tinctures, and possessing all the medicinal properties of lupuline. 



" Dose for an adult one teaspoonful, representing 7 J grains of lupuline." 



