Electro-physiology and electro-therapeutics : showing the best methods for the medical uses of electricity / By Alfred C. Garratt.

time, betrayed great pain, and an unwillingness to have it pro- longed. The intensity of the current of this powerful helix machine was then weakened down as much as possible, aided by means of a glass tube containing a column of water, which was interposed in the circuit. Remak then took the same elec- trodes to electrize the same muscle of the same patient. He produced, it appears, at the first application of the current to the nerve trunk and border point, an accessory action on the nerve median/us; but after moving the upper electrode a little, a per- fect and painless contraction of the forearm icas the result, while the tetanic-like contraction indicated the true source of the phe- nomenon. The patient gave a thankful and astonished look at Dr. Rcmak, and answered his questions by saying, with a shy side glance at Dr. Duchenne, that he had not experienced the least painful sensation. Next, according to his own method, Dr. Remak tested the muscle pectoralis and the rhomboideus through their nerves, which he caused to contract most power- fully, yet without the least pain. It appears that Remak did not deem it expedient to show this trial on any other muscles and nerves than these two, which Dr. Duchenne had already observed in like manner before. Methods for using the Primary Currents of Galvanism and the Secondary Currents of Faradaism. A few remarks advanced by Dr. Duchenne some years since, in his great work on " Localized Electricity," respecting the in- utility, and even " danger," of employing the primary galvanic current for medical purposes, have, proved an effectual guard against its remedial use of late; so that almost no experience with the primary current has been obtained for the last ten years, excepting by a very few, whose testimony, however, is too high to be either overlooked or disposed of summarily. The first I will mention is that of Dr. Robert Remak, of Berlin, whose indefatigable labors and learned deductions command, at least, a respectful hearing. To understand this Prussian phi- losopher, we must observe that he is not a believer in the " vis