In this paper the Author added a few supplementary observations to those made on the alleged poisonous properties of the Œnanthe crocata, in his paper on the poisonous Umbelliferœ, read on the 4th December last.

He stated that he had met with other cases of poisoning with this plant, recorded by Continental authors, shewing that death may take place in an hour,—that so small a quantity as a single tuber, no bigger than the finger, has proved fatal,—that the roots are poisonous in some countries, from the beginning of January till the middle of October at all events, and probably throughout the whole year; and that Spain may be added to the countries formerly mentioned, where fatal effects have been produced by the plant.