126 An ANALYSIS, &c. 



warmed paper, and repeat this, until the paper is prepared as 

 above directed. The prominent part of the wick of the can- 

 dle, which is thus melted, becomes a fort of pencil, which holds 

 the melted tallow or wax, and facilitates the application of it, 

 and the wick of a tallow candle, on account of its being thicker, 

 is fitter for this purpofe than the wick of a wax one. 



The laft remark on thefe experiments I mall now make is, 

 that, in the trials with the folution of barytes, the barytes vi- 

 triolica was formed in particles fo very minute, that they did 

 not all remain at firft upon the filtre. Some of them patted 

 through it, and made the filtrated liquor a little muddy ; but 

 by making this muddy liquor pafs through the filtre a fecond 

 time, it was made quite clear, the whole of the fediment being 

 thus collected on the filtre. 



V. 



