CATHARTICS. 61 
medicine in our rheumatic cure, which we have not yet known 
to fail. The form in which the doctor above referred to pre- 
scribed Cascara Segrada was the fluid extract; the dose 30 
drops three times a day; if too severe on the bowels omit a 
dose or two, or take an astringent. The bark in decoction is 
one ounce to the pint; simmer an hour; cool and strain, and 
in order to correct its griping tendency and very bitter taste, 
an ounce of tincture of cardamons, ginger, peppermint, or 
other aromatics, may be added, with sugar if desired. 
We close this list with 
BUTTERNUT BARK (Jucrans Crnerua), 
(Sometimes called Oil Nut, or White Walnut.) 
This is a mild aperient, opening without griping. The 
tree from which the bark is obtained belongs to the walnut 
family, this kind growing plentifully in the United States and. 
Canada, Its action on the stomach resembles rhubarb, mild 
and non-irritating. The inner bark is the part used. The 
virtue is extracted with boiling water. It may be made into 
a decoction with others to meet indications, or by itself, but as 
it is not strong an extract is the best form for ordinary use. The 
solid extract is simply made by evaporating the decoction of 
2 ozs. to the pint to the proper consistency. In addition to 
the above quality it is also a blood purifier which is of great 
value in skin eruptions of a recent character. Dr. Fox 
recommends it as the best aperient after or in itself as a worm 
expeller. Dr. Dawson says that in his experience 2 ounces of 
the bark in a pint of proof svirits will act as a purge in doses 
of one or two teaspoonfuls. The dose of the solid extract is 
from 20 to 380 grains (half to a teaspoonful) for a brisk 
purge. These doses are for adults. Children in proportion 
to aze. 
