in the facility with which the patient could make herself understood, but also in the tone of the

platina pin.

voice, which was unquestionably owing to the alterations that had been produced in the form of the superior part of the pharynx.

Case VI.-D. W.; Aet 38.-Consulted me in June, 1869, in reference to a cleft in his mouth, extending through the hard and soft palate and alveolar ridge; there was an overlap on one side

of the cleft only, the opposite margin articulating with the vomer.

An instrument was made of the form shown in figs. 37 & 38. The drawings illustrate the

manner in which the two parts are united, so as to present a smooth surface in the palate-a point of very great importance, where, under the most favourable circumstances, there is great difficulty in articulating with clearness. In this case it will be seen, as in the previous ones, the artificial velum is held up by the overlap, and not by any attachments round the teeth.

The progress of the patient was quick and satisfactory, as regards improvement in speech.

Case VII.-W. H-; Aet. 68.-Cleft of hard and soft palate, the hare-lip having been treated early in life. I was called in to see this case, in consequence of the patient suffering from a sensation of suffocation very frequently, apparently caused by the passage of cold air between the throat and nostrils; both the upper and lower jaws were without teeth. The appearance of the upper jaw, with the cleft, is shown in Fig. 39.

without producing any irritation in the nasal cavity. I therefore made an ordinary full upper set of teeth, and continued backwards from its posterior border an artificial velum of elastic rubber, simply covering the cleft without any overlap. The form was, however, so simple, that I think it unnecessary to give a drawing of it. The upper piece was connected with the lower by means of spiral springs, and fulfilled the special object it was made for in a most satisfactory manner, the patient having recovered and remained well ever since.

Case VIII.-Miss W.; Aet. 19.-Brought to me March, 1869, suffering from thickness of speech, and inability to give the letters M, N, B, P, &c., with clearness. The young lady had suffered from enlarged tonsils, and had improved in utterance and general health since they had been removed, but her friends had still great difficulty in understanding her when reading; and when she suffered from cold, even during ordinary conversation, she found a difficulty in making herself understood. The roof of the mouth was very high, and the dental arch much contracted. It was not thought desirable that anything should be done to remedy the contraction of the circle of the teeth, but an artificial palate was made to reduce the roof of the mouth to its normal depth.

Fig. 40 shows in section the peculiarity in the