Notes and Corrections

The editor is unable to compile the “imponderabilia” in a manner satisfactory to himself, or useful to the profession. The material on hand for such a work will be turned over to Dr. John Butler, who has made most careful re-provings of electricity.

Provings of the “lacs,” by Dr. Swan, are likewise left for separate publication; one (Lac defloratum) has been published recently in the Organon.