This has been already noticed both among the tonics and emmen-agogues (i. 311 and ii. 101). Without having any personal knowledge of the powers of tansy, in the relation in which it is here considered, I have been assured by a highly respectable practitioner, in whom I have entire confidence, that, within his own knowledge, the midwives, in his neighbourhood, are in the habit of using an infusion of tansy for the promotion of labour, and with extraordinary success in lingering cases. He has himself also employed the remedy with advantage, and believes it to operate by directly promoting the contraction of the organ, without producing vascular irritation. This is no new application of tansy, but seems to have been lost sight of by the profession. The oil is often used by the country people with the view of inducing abortion; and three instances of death from it, taken with this object, are noticed in the account of tansy given in the early part of this work. it certainly has a powerful influence on the nervous system.*