DESCRIPTION OF PLATE I. 



The Figures illustrate Mr. Hutchinson^ s Report on iS^pAilitie Malforma- 

 tions of the Permanent Teeth. 



Eig. 1. An upper permanent central incisor of a boy, the subject of 

 inherited syphilis. The tooth has been very recently cut, and 

 shows a broad vertical notch, in which are several small projecting 

 spines (the sole remains of the atrophied mid-lobe^. 



Eig. 2. Two upper and four lower incisors (permanent) of a girl, the 

 subject of inherited syphilis, all but recently cut. The upper 

 teeth are narrow from side to side, at their edges, and show a 

 thin middle lobe, bounded above by a crescentic line. The 

 lower teeth are rounded, and show foliated extremities. All the 

 teeth are small, and spaces occur between the adjacent ones. In 

 the upper ones, the crescentic thin mid-lobe, and in the lower 

 ones the foliated extremities, will before long break away, and 

 leave the teeth in the state shown in Fig. 3, Plate IX., and Eig. 1, 

 Plate VIII. respectively. 



Eig. 3. The central upper incisors of a lad aged 15, the subject of 

 inherited syphilis. The teeth are short, convergent, narrow from 

 side to side at their edges, and show in each a vertical notch. 



Eig. 4. In these teeth, almost similar characters as in Eig. 3 are seen. 

 The notches are, however, less deep, whilst the narrowing from 

 side to side is very marked. 



Eig. 5. The upper incisors of. a girl of 17, the subject of inherited 

 syphilis. There is a wide space between the central ones ; and 

 both these teeth, although of nearly normal length, are narrow, 

 and show deep vertical notches. The lateral incisors are, as is 

 usual, of normal size and form. These teeth are much less typical 

 of hereditary syphilis than those in Eigs. 3 and 4. 



Eig. 6. The upper incisors and canines of a girl of 12, the subject of 

 hereditary syphilis. The right canine is a temporary tooth ; all 

 the others are permanent. The incisors are remarkable for great 

 inequality of size and difference of form. The right central incisor 

 is very small and notched. The right lateral incisor is of normal 

 size ; all the others much below it. 



Eig. 7. The upper permanent incisors of a boy of 12 (syphilitic). This 

 sketch shows a condition of extreme dwarfing of the central ones, 

 which, although cut four years ago, liave never grown higher than 

 a line or two above the gum. 



Eig. 8. An exceedingly well-characterized set of syphilitic teeth (upper 

 and permanent), from a girl aged 16. The central incisors are 

 dwarfed, narrow, and notched ; the lateral ones of normal size ; 

 and of the right canine, the apex is replaced by a notch, in the 

 centre of which is a small tubercle. 



