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

sponge-tipped electrodes, conveying a very weak, but rapidly interrupted current. Three applications restored the sight, and tonic medicines, with rest, confirmed the restoration. There is a nervous affection of the eye, termed musca voli- tantes, which is an aberration of the sense of sight that trans- mits the image of some of a multitude of imaginary objects. This may be simply symptomatic of fatigued nerves, or it may be idiopathic, and connected with the state of the brain. I will concisely say that where the " black spots " or " shining sights " have a circular or perpendicular movement, particularly if at winking, the affection is then probably symptomatic, requiring rest and very gentle localized Faradaization by team-electrodes, or a bathing of the closed eyes and surroundings with the moist sponge positive electrode, while the other is on the back of the neck. If the black spots, &c, are stationary, they probably are idiopathic, and should not be so disturbed. A young gentleman, a student at Cambridge, came to me with blindness of the right eye, which he said was a sudden occurrence, and that, probably, from too close study by candle light. He could still see very distant objects quite distinctly; but he coidd not make out objects near by if his well eye (which was also dim) was closed. The pupil was largely dilated, the iris being drawn closely to the ciliary ligament, and it was unmoved by the approach of a strong light. He had been under the care of one of the most distinguished oculists for the six months previous, during which he had been leeched, blistered, and mercurialized, without any benefit. A weak cur- rent of induction was first tried for a few times, directed upon the two sides of the globe of the eye, over and through the closed eyelids. This was without effect. I then made gentle touches to the sides of the cornea and sclerotica, and at the close of each seance applied by a camel's hair brush a weak solution of sulphate of copper around the,sides of the cornea, where the electrode had just touched. After ten such sittings, performed every other day, his eyes quite recovered, now bear- ing close study, and yet remaining strong. Ptosis, or " falling of the upper eyelid," often arises from