I 



Alkalies akd their Carbonates. 277 



PoTASSE d'Ameeique, Petite potasse bleiie. Caustic soda 

 melted with salt, lime, and oxide of copper ; sold to the Paris 

 laundresses for American potash, as they object to using soda. 



Soap ley. From barilla ashes mixed with one-third their 

 weight of quicklime, and the caustic soda and salt washed out 

 with water. Is very various in its strength ; and weak leys are 

 afterwards drawn from the same ashes, by pouring on more 

 water, and draining it off, for three or four times. 



Henry's pure soda-water. From pure caustic soda dis- 

 solved in water, so as to have the sp. gr. of 1*07; is of the same 

 effective strength as his carbonate of soda-water. 



volatile alkali or ammonia. 



Carbonate of ammonia, Suhcarbonate of ammonia, Volatile 

 sal ammoniac f Bakers' salt, Sesquicarhonate of ammonia^ Sal vola- 

 tilis salis ammoniaci, Ammonia prceparatoy Ammonice carbonaSy 

 AmmonioB subcarbonas, Sal ammoniac lib., powdered chalk 21b. ; 

 mix accurately, and sublime. This is stimulant, antacid, diapho- 

 retic, and antispasmodic, and is used in hysteria, dyspepsia, and 

 chronic rheumatism. Dose gr. v to xv in pills, or in any bland 

 fluid. Officinal preparation. — Ammoniae bicarbonas; Liquor 

 ammoniae acetatis ; Cuprum ammoniatum, L. E, D, 



2. Sal ammoniac, subcarb. of soda, ana lb. j ; sublime. P. D. 

 Stimulant, and used as an errhine, like the spirit. Much used 

 by the bakers, to make bread in a hurry : the bread is yellowish, 

 and the cells very small, but it may be baked as soon as the 

 dough is mixed. When fresh-made is composed of 2' 125 amm. 

 4 125 carb. acid, with 1-125 water; equiv. 7*375. By keeping 

 the outer surface loses a portion of its ammonia, and is changed 

 into bicarbonate, which has not the pungency or volatility of the 

 Lsquicarbonate. 



Spirit of hartshorn, Spiritits cornu cervi. Liquor volatilis 

 cornu cervi. From hartshorn, by distillation ; when rectified, has 

 a pleasant refreshing odour. 



Salt of hartshorn. Volatile salt. Smelling salt, Sal cornu cervix 

 is obtained in the same process with spirit of hartshorn, and is 

 purified by mixture with l-8th of chalk and sublimation with 

 a gentle heat : pleasant smell. Salt of oxteeth is sold for it, in 

 France. 



Spirit of oxtkkth. Salt of oxteeth. Nearly equally pleasant 

 as spirit of hartshorn, for which they are sold. 



Rough bone spirit, Liquor volatilis ossium. From bones 

 which have l)een boiled for their grease by distillation in iron pots 

 or cylinders ; separating the oil and salt uy filtration ; l-5th more 



