to this circumstance, the cure is always commencing but never proceed-ing. It should, however, also be kept in mind that medicines, such asthe mercurial salts, arsenic, &c, are apt to accumulate in the system;and danger may thence arise if the doses too rapidly succeed to eachother. The action also of some remedies, elaterium and digitalis, forexample, continues long after the remedy is left off; and therefore muchcaution is requisite in avoiding too powerful an effect, by a repetition ofthem even in diminished doses. (Dr. A. T. Thomson.)

ERRATUM.

In DjBCOCTUM Sarsafabih.je Cojupositum, for "3'ij of bark of mezereou "

read "3''j-"