(In El Siglo Medico, 1890, Dr. Fernandez Avila reports the case of a boy, æt. 8, who had been bitten by a supposedly mad dog on Feb. 18. The wound healed up, but on July 7th the boy developed all the symptoms of rabies and on the 17th was so violent that he had to be tied and had not tasted food for seventy-two hours as all remedies failed to produce any effect, the doctor, having read that _Agave Americana_ was efficacious in such cases, and having none of the tincture at hand, gave the boy a piece of the plant itself which he greedily ate; it was given to him as long as he would take it. On the 25th his symptoms had all abated and he was dismissed cured.) AMBROSIA ARTEMISIFOLIA. NAT. ORD., Compositæ. COMMON NAMES, Rag Weed, Hog Weed. PREPARATION.--The fresh leaves and flowers are pounded to a pulp and macerated with two parts by weight of alcohol. (The following concerning this little used remedy was contributed to the HOMOEOPATHIC RECORDER, 1889, by Dr. C. F. Millspaugh, at that time the editor): Of late years much attention has been called to the species of the genus Ambrosia (the Rag Weeds) as being, through the agency of their pollen, the cause of hay fever. Many people afflicted with this troublesome complaint lay the charge directly at its doors, while others claim that, in all probability, it is the direct cause, as their sufferings always commence during the anthesis of the plant. The general impression, however, both among the laity and the medical fraternity, has been that the effect was a purely mechanical one, the nasal mucous membranes being directly irritated by the pollen dust in substance. If this were true, would not every one suffer from hay fever? Impressed with the above report, I had the pleasure of curing two attacks while writing my work upon "American Medicinal Plants," in which the above species figures. Since the publication of the work, all the cases I have had of the disease (four) have yielded beautifully to the 3d centesimal potency of the drug.