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202

Materia Medica

Tonics

form of Clysters for intermittant fevers, it may be applied
advantageously when the stomach is unable to bear it, the usual
form of applying it is either in the form of poultice or quilted
jacket on the abdomen. Rorintuer cured a fever in this manner.
The celebrated Dr Rittenhouse wore constantly such a jacket as
a preventative to a tertian fever to which he was a long time
subject. I would recommend its external application in cases when
it would be proper and could not be taken internally, the
external use of the bark has been highly recommended for children
labouring under intermittant fevers I think worthy attention, it
should be reduced to a verry fine powder, and the quantity
of ℥ij or ℥iij [2 or 3 ounces] quilted in a double jacket, and worn by the
patient, its operation is certainly on the solids as I cannot
believe a particle of the bark used in this way is absorbed and
taken up into the circulation. Dr Darwin used to sprinkle
it upon the bed clothes, but this I never did try or ever shall,
decoctions and infusions are highly recommended, but the
tincture though I believe it usefull in some cases yet I will
not recommend it, believing the decoction to be better. Bark
is said to be more efficacious when combined with certain