42 THE BRAD SHAW LECTURE 



found to have an ill-developed lateral incisor on 

 the right side. Her first child had an extreme 

 deformity of hare-lip and cleft palate extending 

 from the right side (see Fig. 5, p. 40). The next 

 case was the first child of young parents who was 

 brought for operation on a hare-lip on the left 

 side extending into the nostril. The mother was 

 a nice-looking woman and showed no defect in her 

 lip, but on the left side her lateral incisor tooth 

 presented a remarkably defective development. 

 It will be noted that the defect in the child is 

 invariably on the same side as the defect in the 

 mother (see Fig. 6, p. 41).* 



My last observation is on a young man who w^as 

 operated on for hare-lip on the right side in infancy. 

 On examining his teeth I found that the prospec- 

 tive division of the palate which did not proceed, 

 or perhaps I ought to say lack of union, had 

 divided his lateral incisor opposite the cleft into 

 two separate small teeth (see Fig. 7, p. 43). 



* ' Reports of the Society for the Study of Disease in Children,' 

 1905, p. 31. 



