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

Sir Astley Cooper, however, in his work on the Testis, (p. 110,) gives some cases of tic douloureux of the spermatic cord. He believes the pain to be truly seated in the nerves, as the pains dart only along their route. He states that he carefully dissected all the testicles which he removed on account of this fearfully painful affection; but there was found no kind of structural change in any of them — proving that they were actually neu- ralgic. (See Appendix E, Note 1.) Both the aggravating and alleviating agents and circum- stances, lead us to see that " lumbago " is, after all, more nearly allied to neuralgia than to rheumatism, in respect to the charac- ter of the pains, and is referable, in a great majority of cases, to impeded venous circulation in that portion of the spinal cord that is below the origin of the cauda equina at the second lum- bar vertebras, and evidently now and then involving also the roots of those nerves that supply the lumbar muscles. If the anterior branch of the first lumbar nerve is involved, the pain extends from the loins and crest of the ilium to the groin, the spermatic cord, testicle, or scrotum, or to the labia of the vulva in the female. (See p. 477, and Appendix B, E, F.) Neuralgia of the upper extremities is more frequently found seated in that portion of the cubital nerve at the elbow, which passes between the internal tuberosity of the humerus and the olecranon, from which spot the pain darts down in the route of the nerve, even to the ring and little fingers. Sometimes the pain starts from the brachial plexus and shoots backwards through the supra-scapular nerve, but more frequently through the sub-scapular nerve; and still more frequently through the nerve circumflex; the pain then being seated in the back and lower portion of the deltoid, and near its insertion into the humerus. A most excellent and somewhat aged lady, who had suffered from this painful nerve for about two years, in spite of skilful care, was sent to me by Dr. J. B. S. Jackson, and was entirely cured of it by a dozen sittings for the primary current of galvanism, aided by electro-puncture. Some exceedingly painful and protracted cases of neuralgia of that branch of the median nerve that ramifies the dorsal aspect of the thumb, have