The author of the article "Tic" in the Dictionary in Sixty Volumes of 1822 urges the necessity of care and perseverance in the correction of the involuntary movements characteristic of the disease. In 1830 Jolly recommended different exercises in the treatment of convulsions, as a means of interrupting the sequence of certain spasmodic phenomena. Blache's[220] adoption, in 1851, of medical gymnastics in cases of "abnormal chorea" was attended with excellent results; and Trousseau, as we have seen, extolled the value of exercises systematically applied to the muscles involved in non-dolorous tic. The principle of the treatment consisted in the regular execution of given movements by the muscular groups affected, to the rhythmical accompaniment of a metronome or the pendulum of a clock. In these instances we have a forecast of the modern methods of re-education, so successfully employed to combat tic. Letulle advises an appeal to the intelligence, good sense, and will of the patient in the endeavour to provoke an inverse effort at the moment when the tic begins, or even before. It is the prerogative of the physician to indicate suitable exercises and to encourage and aid the patient in his attempts. Even the most inveterate of tics may thus be controlled and made to disappear. On the other hand, the _Traité de médecine_ ignores the subject, while Lannois' paper in the _Traité de thérapeutique_ contains the statement that in the treatment of myoclonus--under which term various indefinite convulsive movements are comprehended--no method has hitherto been of any avail. Yet in another section of the same book we discover some sound advice anent tics and choreas of hysterical origin, emanating from the pen of Pierre Janet. It is well to study the influence of the attention on these conditions; some tics are contingent on the direction of the patient's attention to them, others appear solely during times of distraction.... Education of movements by some form of drill may be of the greatest utility. These general therapeutic indications are applicable to all kinds of tic, independently of their form and localisation. Moreover, they conform to the procedures advocated by Brissaud since 1893. So long as tic is regarded as a purely external phenomenon, treatment is bound to be insufficient; but recognition of the relations between the convulsion and the mental state of the subject has made possible a rational therapeusis. There can be no doubt, thanks to the laborious work of Bourneville, that systematised mental discipline has sometimes a surprising effect on congenital psychical imperfections; and where the patients have attained a higher level of mental development, re-education has shown itself to be the method _par excellence_.