430 \ 



UNITEB STATES. 



/ 



grotto del cam * in Italy . It is this air which is so 

 plentifully given out, during the spirituous fermen- 

 tation, and is what gives that briskness to porter, 

 atid other malt liquors. Being united with the ve- 

 getable alkali, it forms cur common potash, hence 

 the reason why housewives are enabled, any time, 

 at half an hour's warning, to furnish a well-raised 

 eake, merely by mixing up the flour with a solution 

 of potash and sour milk; here th^ acid of the milk, 

 from a greater attraction, joins itself to the alkali, 

 while the xriform acid being set at liberty, and as- 

 sisted by the expansive power of heat, penetrates 

 and pufiTs up every particle of dough. 



From Dr. Seaman's experiments, it appears that 

 one gallon of the. vzaters contain, of 



cubic in. 



Carbonic acid • r 40 



Crated iron . • . 1,7 



Lime, supersaturated with carbonic acid 38 

 A muriatic neutral salt . 34.6. 



A mineral alkali . ♦ 5,2 



Sulphureous impregnation • • 



Fzrt7ies..*>TheY open the bowels, induce gentle 

 perspiration, and increase the appetite. They may 

 be taken in large quantities without producing any 

 uneasiness or weight, excepting sometimes in deli- 

 cate stomachs, they cause a sense of coldness, and - 

 prove emetic. They cure cutaneous disorders, 

 dropsy, and intermittent fevers, and relieve paraly- 

 tic affections* According to Dr. Waterhouse, they 



See the 2d voL of the Wonders of Nature and A?t. 



