ACTION OF SALTS 0¥r VOLATILE OILS- |47' 



separately, and obtained by crystallization the superoxigen- 

 ized muriate of potash just as it had been before it was dis- 

 solved. 



Exp. 6- Into a phial I put two parts of recently made Lime-water 



lime-water and one part of volatile oil of rosemary. The ^"^ '-^'' '^^ ^°'^^" 



. . . . mary. 



mixture became white on shaking it: but on standing the 



oil separated as fluid, and as transparent, as before, though 

 whiter. The portion in contact with the lime-water formed 

 a light whitish coaguhim: and the lime-water had acquired 

 a dull yellow colour, without having lost its property of be- 

 ing precipitable by oxalic or carboiiic acid. 



Fxp. 7. Crystals of nitrate of mercury, obtained from a NUrate of me.- 

 solution of the metal made without heat in nitric acid, were of roseraaiv- 

 enclosed in a phial with four times their weight of oil of 

 rosemary, and immediately a curved tube, terminating un- 

 der a glass jar filled with water, was inserted into the mouth 

 of the phial. I shook the mixture occasionally, leaving it 

 thus for sis days. I perceived no commotion, or evolution 

 of gas ; the oil acquired an amber colour; the quantity of 

 crystals of nitrate of mercury was considerably diminished; 

 and I observed a gray powder, among which globules of 

 fluid mercury might be distinguished, flaving poured the 

 contents of the phial on a tilter, the oil passed of a reddish 

 colour, with the thickness of a fixed oil, and with an em- 

 pyreumatic acid smell, that was predominant over that of 

 rosemary. It contained likewise a small portion of nitrate 

 of mercury in solution. Copper was whitened by it. 



The mercurial matter remaining on the filter was gray, ^'^'^ °^ ^^^^^° 

 glutinous, and intermixed with globules of mercury. Spirit 

 of wine passed through it acquired a reddish colour, and 

 grew milky on the addition of water, like a resinous tinc- 

 ture. After this washing with spirit of wine a gray oxide re- 

 mained, with which globules of mercury were mingled. 



This experiment repeated with volatile oil of lavender 

 afforded the same results. 



Exp. 8. I prepared a solution of corrosive sublimate in Solutionyfcor- 

 the proportion of ten grains of the salt to an ounce of dis- "^^^'^^ muiute 

 tilled water, for a series of experiments, which I shall here 

 relate. 



ist. Into a pliial I put one ounce of this solution and with oil of Ic 

 I. i> some "^""^^ 



