264 Dr. WirHERING’s New Method 
No. I. 
To half a pound of vitriol of copper, called blue vitriol, re- 
duced to powder, add a pint of cold water: ftir them together for 
a minute, and then throw away the water: upon the remaining 
vitriol pour half a pint of boiling water, and ftir them frequently 
until the liquor be nearly cool. Set it by in a warm place, for two 
or three days, to cry ítallize. 3 
Take any quantity of thefe cryftals, add to them as s much hot - 
water as will barely diffolve them, and put the folution into 
a vial. = 
To two or three quarts of pure {pring Water, put as much of 
this folution of blue vitriol as will give to the whole a very flight 
bluifh tinge: then add to it, reétified fpirit of wine, in the pro- 
portion of a pint toa gallon: filter the liquor through blotting 
or cap paper, and put it into bottles for ufe, : 
No. II. 
Diffolve a quarter of an ounce of fugar of lead in a pint of di- : 
| ftilled or very pure fpring water, made boiling hot ; add feven pints 
of pure cold water, and one pint of rectified FE of wine: filter 
the liquor, and keep it in bottles. 
The above proportion of fpirits of wine is fufficient for the 
thickeft and moft fucculent fpecimens, but lefs will do for fuch 
‘as are thin and not juicy. If the fpirit be fufficient to prevent 
mouldinefs, it is enough, for more has a tendency to extract the 
colours. 
Put 
Fa 
