(seq. 107)

98

Materia Medica

Astringents

Saccharum Sat. I believe now the latter the only preparation used
internally the extract of lead is produced by boiling vinegar and
litharge, it is recommended by Mr Golard as preferable
to any other preparation of lead, but it differs verry much from
Sach. Sat. this metal is easier calcined than any other none of
the preparations made by the fire are taken internally, but are used
externally. Booerhave says it brings on consumption of the lungs
and other troublesome symptoms. Mr A supposes the preparations
of lead never enters the system but I am led to believe they are
sometimes absorbed one of the most dreadfull effects from lead
is to produce Colica Pictonum which sometimes terminates in
palsy. I have even doubted whether this was brought on by lead.
I think the Mallic Acid or Cyder will bring on the same disease
it has made its appearance in many parts of Pennsylvania from
the use of Apple Butter, lead sometimes produces rheumatism of
the wrist and palsy of the arms this I have seen in painters and
glaziers, a quack advised some man who worked in lead to
take every morning some bread and butter or oil, by blending
its action on the stomach, from this hint I advised a potter to
follow this practice he informed me he always prevented it in his