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[This remedy has sometimes been
confounded with the plant Sanicula Marylandica, Black Snake-root.]
It was proved by J. G. Gundlach, who, with his family, drank it
for more than a year.
Writing in H. P., September, 1890, Gundlach says: "Though some five years since the proving was made, we all (that is, my family) still suffer from the
effects, and I fear never will fully get over them, as nearly all the symptoms still recur. (Clarke's Dictionary).