■;

190

DlSTILLED SPIRITS."

M

R K.

The young Operator will take care not to invertthe order of mixing, left a violent efFervefcencefhould difperfe the matter in noxious red fumes.The mixture is made raoft fafely under a chimney,by pouring the Arid, through a funnel with a longflem, bent as mentioned, (p. 112,) upon the Spi-rit, by fmall portions at a time, fhaking the vefTelas foon as the efFervefcence fucceeding each addi-tion ceafes, before the frefh addition to be made.During the aclion of the fluids on each other, the-veffel fhould be lightly covered; — if clofe ftoppedit will burft;—if left open, the more valuable partswill exhale. The method of mixing thefe fluids,ufed, by the very modelt and ingenious Dr. Black,for nitrous iEther, whether proper for the prepara-tion here intended or not, deferves to be mentionedas given, it is iäid, by Dr. Webfter.

On two ounces of the ftrong acid, put into aphial, the Dodtor pours, flowly and gradually, a-bout an equal quantity of water ^which, by be-ing made to trickle down the fides of the phial,floats on the furface of the acid without mixingwith it. He then adds, in the iarne cautious man-ner, three ounces of highly-reclified fpirit of wine,which, in its turn, floats on the furface of the wa-ter.