383 PURIFICATION OF LEMON JUtCE. 



through the medium of the coir.rjnon absorbents carrying it 

 into the thoracic ductj and afterwards into the circulation 

 of the blood. 

 The inquiry to The discovery of this fact I consider to be of sufficient 

 be pursue . importance to be announced to the Society, that, -when it 

 is thifs n)ade public, I may be at liberty more openly, and 

 on a more extensive scale of experiments, to prosecute the 

 inquiry. 



XIV. 



Qn the Purification of Lemon Juice. In a Letter from a 

 Correspondent. 



To Mr. NICHOLSON, 



Pariiicatlon of i\ READER of your valuable publication submits to 

 eraon juice: y^m- judgment the following methods of purifying lemon 

 juice, which should you think worthy of a place therein, 

 it will oblige 



Yours, &c. 



PHILOCHEMICUS. 



1st, Take of nitromuriate of tin, (prepared by dissolving 

 fey nitromuriate the metal in a mixture of two parts nitric, and one muriatic 

 "^' acid) one dram, lemon juice one quart j after standing 



forty eight hours filter through white paper. 

 or charcoal. 2nd, Take of finely pounded and well burned charcoal 



one ounce; lemon juice one quart; mix, and after standing 

 twelve hours filter through white paper. 

 Second method The latter method seems preferable, as there is nothing 

 perhaps prefer- gjj^p^Qygd^ which can in any degree injure the juice, the 

 charcoal being perfectly insoluble. 



In the former, perhaps some of the solution of tin may 

 pass the filter, though it is most probable it precipitates 

 along with the mucilage and extractive matter, which are so 

 combined, that one cannot be precipitated without the other ; 

 however should any pass, the quantity must be so small, as 

 to render it of little consequence. 



SCIENTIFIC 



