ITS SURGICAL AND MECHANICAL TREATMENT. 81 



of knives of this shape (Fig. 1), so as to form two 

 flaps, which falling downwards towards the tongue, 



Fig. 1 * 



their edges shall meet in the mesial line ; these edges 

 are then to be pared, so as to present clean cut raw 



♦ Copied from an illustration given by Mr. Pollock in his paper on 

 Congenital Deficiency of the Palate, &c., published in Vol. xxxix. of 

 the " Medico-Chirurgical Transactions." 



G 



