the Cabbage-bark "Tree of Jamaica. 509 
The deception. Take frelh-dried or well-preferved 
cabbage-bark, one ounce. Boil it in a quart of water, over 
a flow fire, till the water is of an amber colour, or rather 
of deep coloured Madeira wine ; ftrain it off, fweeten it 
with fugar, and let it be ufed immediately, as it does not 
keep many days. 
Syrup of Cabbage-bark. To any quantity of the 
above decoction add a double portion of fugar, and make 
a fyrup. This will retain its virtues for years. 
The extract of cabbage-bark is made by evaporating 
the ftrong decoition in balneo maria to the proper con- 
fluence ; it muft be continually ftirred, as otherwife the 
refinous part rifes to the top, and on this probably its 
efficacy depends. 
The powder of well-dried bark is eafily made, and 
looks like jallap, though not of equal fpecific gravity. 
This bark, like moft other powerful anthelmintics, 
has a narcotic effeit; and on this account it is always 
proper to begin with fmall dofes, which may be gra" 
dually increafed till a naufea is excited, when the dofe for 
that patient is afcertained. But by frequent ufe we can 
in common determine the dofe, though we ehufe to err 
rather on the fafe fide. 
A ftrong healthy grown perfon may, at firft, take four 
table fpoonfuls of the decoition or fyrup, three grains 
of the extrait, or thirty grains of the powder for a dofe. 
A- youth r 
