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

upper fibres. Fifth, a neuralgic spot quite on the side of the chest, and just by the anterior edge of the serralus muscle, where the long thoracic nerve trunk (external respiratory of Bell) is superficial on its way to the farthest serrations of this great respiratory muscle. Sixth, a neuralgic spot imme- diately at or beloiv the insertion of the deltoid, muscle into the humerus, where the spiral cutaneous nerve emerges to become superficial. Seventh, a neuralgic spot over the border of the sub-scapularis muscle, extending to the posterior portion of the deltoid, where the terminal branches of the axillary or circum- flex nerve are lost in the integuments and superficial fleshy fibres of that region. Eighth, a neuralgic spot on the middle of the posterior aspect of the upper arm, where the lesser cuta- neous nerve of Wrisberg emerges and becomes superficial. Ninth, a neuralgic spot along the inner border of the whole upper arm, but more particularly at a point just above the bend of the elbow, and by the inner side of the tendon of the biceps muscle, where the great medianus nerve trunk becomes most superficial. Tenth, a neuralgic spot on the dorsal and radial aspect of the wrist and hand, where the dorsalis carpi, which is also known as the dorsal branch of the radial nerve, mounts obliquely upon the extensor muscle of the thumb, and runs along superficially to the back of the thumb and fore finger. There is another liable to be a painful spot at the back of the wrist joint, over the nerve ganglia there; but this is not so frequently neuralgic, as rheumatic. _ (See p. 477, Note B.) Superficial Nerves in the Dorso-Inlercoslal Region. There are twelve dorsal nerves on each side of the body: the first or upper one leaves the spine between the first and second dorsal vertebra?; the last or lowest one from between the twelfth dorsal and first lumbar vertebra?. These are distributed to the back, sides, and front portions of the body, both supplying the muscles and skin from the shoulder above, to the crest of the ilium below. This maps out the whole field of what is desig- nated as Dorso-intercostal Neuralgia.