324 X. GASES AND FUiMIGATIONS. 



essence of spruce 4oz. (a 3s. pot), add yeast, work as in making 

 ginger beer, and bottle immediately in half pints. 



Brown spruce beer. As the white, using treacle in lieu of 

 sugar. 



Treacle beer. Hops lib. 4oz., boil in water 36 gall, for an 

 hour, add treacle 141b., a little yeast, and ferment. 



2. Hops 1 oz., and half, water 1 gall., treacle lib. 



Malmsey, Parsnep icine. Cut the roots into thin slices, boil 

 them in no more water than will just cover them, press out the 

 liquor and ferment. 



Elecampane wine, Vin cCaulnte, Is prepared in France, 

 and considered as stomachic. 



Pulque. From the sap of the leaves of Agave Americana : 

 drank in South America. 



Birch wine. From the sap of the birch tree. 



Toddy. From various species of palms, by cutting off the 

 end of the flowering bud, collecting the sap, and* letting it stand a 

 few hours to ferment. 



X. GASES AND FUMIGATIONS. 



GASES. 



Hydrogen gas, Gas hydrogenmm. Zinc turnings ^ss, common 

 water 4 pints put into a retort : add oil of vitriol 3vj, and place 

 the retort so that the gas may pass into inverted bottles filled 

 with water, or into a gas-holder. Used in artificial fireworks, and 

 to find the quantity of oxygen contained in gases. 



Sulphuretted hydrogen gas. Hepatic r/as. Gas hjdrogenium 

 svlphuratum. Lime 2 oz., sulphur 3 oz., mix, melt, pour out, and 

 when cold put into a retort, add gradually oil of vitriol, and 

 receive the gas in inverted bottles. Extremely fetid, poisonous, 

 yet exhibited in obstinate cough after peripneumonia, requires 

 great caution. 



Oxygen gas, Pure air^ Dephlogisticated air. Vital air. Gas 

 oxygenium. Heat black oxide of manganese lib. in a retort or 

 iron bottle, and collect the gas it yields, rejecting the first bubbles: 

 produce about 3400 cubic inches, or more than 14 gallons. Sti- 

 mulant when breathed, in doses of 6 to 30 cubic inches. 



Carbonic acid gas, Fixed air, Gas acidum carbonicum. 



