32 Dr. fordyce’s Method of 
Decant the fluid from the copper and iron with great 
care into another bafon, fo that as little as poftible or 
none of the copper be carried along with it. 
Wadi the metals in a pint of water; let them fubfide 
perfectly, and pour this water into the fecond bafon, with 
the fame care, 
Repeat the wafhing three times. If any copper be 
found in the fecond bafon, let the wafhings ftand in it 
for half an hour, fo that the metal fir all fubfide; decant 
the fluid carefully off, and return the copper into the firft 
bafon. Pour upon the copper and iron one ounce of vi- 
triolic acid, and two ounces of water; let them ftand to- 
gether for a quarter of an hour, or until the copper fhall 
be ealily feparable from the iron. Separate the copper 
from the iron, taking great care none be loft ; the re- 
maining iron may be laid afide. Pour the acid from the 
copper, after it has fubfided, into the fecond bafon, and 
walh the copper with a pint of water, and repeat the 
wafhing three times, as before directed. 
Great care is to be taken, in decanting both the acid 
and wafhings into the fecond bafon, that none of the cop- 
per goes along with them, and left any fhould, they 
ought to ftand for half an hour in the fecond bafon, and 
be decanted from it alfo with care, and if any copper is 
3 found 
