39^ ESSAYS AND OBSERVATIONS 



ted with water ; nor does the fait emit 

 any fumes with ol. vitriolic 



20. A glafs of this water, into which 

 ten gutts of oh tart, p. d. were dropped, 

 and another glafs of the fame water, turn- 

 ed, with powder of galls, to a faint vio- 

 let colour ; being mixed together, produ- 

 ced exa<5lly the colour of old red pore- 

 wine. 



Experimenu made on the fame Spaiv Water , 

 taken up Odober l 2. 1 750, nfter five or 

 fix Weeks of dry Wtaiher, 



21. The fharp aluminous tafle was 

 much weaker, and the chalybeate fliptic 

 tafte fcarce to be diflinguiChed. 



22. With fyrup of violets, even after 

 (landing all night, there was a little, and 

 but very little, tendency to green. 



23. With ol. *vitrioIij no cfFervefcence, 

 or change of colour, 



24. With ol. tart.p, d, no efFervefcence j 

 but the like clouds appeared as (10,), the' 

 in fmaller quantity, and of a yellow co- 

 lour, with fcarce any green, 



25. With 



