172 SYSTEMS OF TREATING STAMMERING nome; he took from Cormack [McCormac ?] the best feature of his system — the initial inspiration." Should one prefer to regard Colombat as the victim of a series of unfortunate coincidences, he must never- theless admit that his " discoveries" were anticipated. Rhythm was employed by Thelwall as early as 1801, which was long before Colombat entered the field. Thelwall says of his system:l "From one simple and original principle (whose existence and operation, I trust, are sufficiently demonstrated by the series of experiments regularly exhibited) I trace the fundamen- tal and physical distinctions of heavy and light syllables; and from the unavoidable alternations of these (or of pauses of the voice during the actions by which they should be produced) I demonstrate the formation of those simple cadences of com- mon and triple measure, out of which arise all the beauties of rhythmus, and all the facilities of fluent and harmonious ut- terance. From an injudicious application of undisciplined vo- lition to this physical action, I endeavour to account for all the gradations of harsh, ungraceful, and interruptive delivery; and from inconsiderate attempts to violate this primary law, all the customary impediments of speech." "Yet I could not but observe and feel, how much the prin- ciple of physiological rhythmus, and the conformity of the volition with its dictates, mitigated the labour of pectoral exertion, and contributed to a healthful and agreeable action of the lungs."2 "The vindication and illustration of the rhythmus of 1" A Letter to Henry Cline, Esq. on Imperfect Development of the Faculties," etc. (London, 1810), p. 189. 2 Loc, cit,, p. 10.