This patient was treated by means of frequent and copious bleeding from the arm--the very frequent application of leeches to the inflamed part, and to the upper and interior part of the thighs, to bring on the menstrual discharge--digitalis to remedy the frequent palpitations--emollient applications, and low diet. On the 10th of January, she was considered well;--the swellings and pain having disappeared--the menstrual discharge being well established, and the movement of the arm (which during the progress of the disease had been impeded from the swelling in the axilla) perfectly free. We are happy to learn that this practice is pursued with success by the Spanish physicians, as may be readily found by a reference to a late number of the Periodico de la Sociedad Medico Quirurgica de Cadiz, which contains cases of scirrhous mamma cured by the repeated application of leeches. 25. _Essential oil of Male Fern, as, a remedy in Cases of Taenia._--The male fern has long been regarded as a valuable anthelmintic medicine; but, as every powder administered in large doses, its exhibition is difficult and disagreeable; so much so, indeed, that many patients refuse to make a sufficiently constant use of it to ensure its beneficial effects. Struck with this inconvenience, M. PERCHIER, a pharmaceutist of Geneva, has lately made some experiments with a view of discovering its active principle, and to see whether this latter may be administered with equal success with the powder or infusion of the plant. We are happy to learn that the result of his experiments are very satisfactory. We translate the following observations from a memoir on the subject, read on the 7th of October last, by Mr. GENDRIN, before the medical society of the department of the Seine. "This medicine, which is a fatty oil extracted by distillation from the aether, in which the powder of the root of the male fern has been macerated, has caused in many cases, the expulsion of the taenia, without occasioning nausea, colics, or any other morbid phenomena." "It is exhibited at bed time, either in an oily potion, in pills, or incorporated in an electuary, in doses of 18 or 20 drops. On the following morning, a similar dose is given, and two hours after, two ounces of castor oil are administered. In most cases, the taenia is expelled in the course of the day, but if this does not occur, the same doses of the oil are given in the same way, and followed by a similar quantity of the castor oil. The fatty oil of fern, has an aethereal and empyreumatic smell; its colour is brown, and its consistence rather greater than that of castor oil; it is, however, easier to separate in drops. Its taste is acrid, pungent, empyreumatic, and very disagreeable."--_Propagateur des Sciences Medicales, Janvier 1826._