862 inches, and the spine and the walls of the chest are stretched. After some seconds the machine permits the thorax to sink down, and the movement is repeated seven to ten times. The patient remains peifectly passive, only inspiring during the pulling up, and expiring during the sinking of the thorax. Persons who carry on a sedentary life respire very superficially ; the walls of the thorax become too stiff, and make the respiratory function laborious; the lower lobes ni the lungs partake

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... little in the respiration. By using the chest expansion, the walls of the chest recover their elasticity, and the patient is made to inspire deeply, so that the air can penetrate to every part of the lungs." MACHINE FOR ROLLING THE FOOT. Rolling of the foot acts upon the muscles, which bend and straighten the foot, working the ankle in a circular manner. If the thigh be not fixed, the rolling movements are the result of the action of the muscles of the whole leg. This, while being less tiresome, is not of such benefit to the ankle as when the thigh is kept in a fixed position. It greatly assists the circulation in the lower extremities. (Concluded from page 820.) " I WILL now describe an example of general paralysis of the insane following locomotor ataxy, and recently under my care. CASE. Locomotor ataxy of about five years' cluratio2t; general paralysis oj nearly fozcr years' duration; death; necropsy.—Mr. -, aged forty-three, married, admitted on July 24th, 1877. As one of his friends expressed it, " he had lived his life." When a youth he had indulged in sexual excess ; subsequently he married early, had a large family, and was confessedly amorous in his marital relations. Without drinking to any decided excess, he had always been of a convivial turn, and fond of spending the night with companions, playing at cards, and drinking and smoking more or less. He had been active in his vocation, had worked hard, had been anxious to succeed in business, and ambitious to place his family in still better standing. Physically he was not strong, and had often over-exerted himself. For a long time before the patient's admission his medical attendant (since deceased) noticed the patient's gait become impaired in a way similar to that existing on admission. He had also been laid up with severe pains in the back and limbs after a fall, and for a long period before mental symptoms supervened he had from time to time suffered from sudden, shooting, darting pains in the lower limbs, which usually were only transitory, and even momentary. He bad, however, behaved very strangely to his wife on one occasion immediately after her confinement, and about a year before his admission to the asylum. At the time of his admission she was again several months advanced in pregnancy. Pronounced 8ymptums of insanity, recognised as such, had existed for three weeks before his admi-sion ; but for several months the patient had shown some mental alteration, although he was not then looked upon as being insane. Latterly he became speculative, bought and sold horses and cattle, drank more than usual, lent or gave away money to undesirable and unsteady acquaintances, and was unwontedly active, fussy, restless, and violent in temper. During the three weeks of more active symptoms immediately preceding his entry he had threatened to poison his brother, under the delusion that the latter was an, illegitimate pretender; he had been coarse and violent in lan-guage and in manner before his wife and children, and in public places and railway carriages ; his buying and selling had been reckless ; his temper violent ; his driving furious; his language had been incoherent, and had revealed extra. vagant views as to his money and possessions. Transactions resulting in loss he declared to be fruitful of gain. He stated that he would live long, and would leave each of his children £10,000; that he was about to buy an estate, and had a horse about to win £10,000 in a race. On admission, the patient was found to be 5ft. 8in. in height, and to weigh 137 lb. ; thin; viscera healthy; cardiac sounds loud, the second widely heard ; pulse 120, full, compressible ; pupils equal, rather small, slightly irregular in shape, sluggish ; tongue protruded slightly to left, irregularly and shakily, pale, large, flabby, indented, furred; face somewhat flabby; occasional facial and labial trembling or twitch during speech, sometimes on the left side only; complexion rather muddy, dilated venules on cheeks; speech tremulous, occasionally slightly hesitating or pausing, and mainly so when he commences to speak. Gait ataxic, steps high and somewhat wide, feet thrown outwards, toes at first out, but turn in at moment of reaching ground, heels somewhat brought down, whole movement of walking irregular, shaky, and jerking. He can stand with the feet close together so long as the eyes are open, but when these are closed he at once sways and falls; with feet wide apart and eyes closed, his frame sways and rocks unsteadily to and fro, but he does not fall. Grasping power of hands good, handwriting shaky, and slightly irregular and erratic. The patient denies having had venereal disease, except gonorrhoea once when young. He speaks of former lumbar pain and tenderness, of former severe pains in legs and feet, and failure of power in the legs. Shortly after admission he twice hurled a flower-pot through the window-glass. Demands