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Experiment V. 



The (Milled water faturated with fixed air neither 

 efrervefced, nor ftiewed any clouds, when mixed with 

 the fixed or volatile alkali. 



Experiment VI. 



No curd was formed by pouring this water upon 

 an equal quantity of milk, and boiling them toge- 

 ther. . 



Experiment VII. . 



When agitated with foap, this water produced 

 curds, and lathered with Tome difficulty -, but not fo 

 much as the diftilled water mixed with vitriolic acid 

 in the very fmall proportion above-mentioned. The 

 fame diftilled water without any impregnation of 

 fixed air lathered with foap without the leaft previous 

 curdling. River water, and a pleafant pump water 

 not remarkably hard, were compared with thefe. 

 The former produced curds before it lathered, but 

 not quite in fo great a quantity as the diftilled water 

 impregnated with fixed air? the latter caufed a 

 ftronger curd than any of th£ others above-men- 

 tioned. 



Experiment, VIII. [ 



Apprehending that the fixed air in the diftilled 



water occafioned the coagulation, or feparation of 



the oily part of the foap, only by deftroying the 



caufticity of the lixivium, and thereby rendering the 



K k 4 union, 



