Atrophy. 7 



slightly upwards. Its upper and outer surface is worn by the 

 inner surface of the upper incisor of the same side. 



The right upper incisor has curved round upon itself, and 

 by pressure has caused absorption of the left upper jaw, which 

 it has in this Avay penetrated. An additional ill-developed 

 incisor lies behind it. 



The left upper incisor — though also overgrown — is shorter 

 than its fellow, and has rubbed against the side of the left lower 

 incisor. An additional incisor lies behind this tooth, and is 

 shorter than the additional incisor of the right side. 



The first right lower molar has had no exactly opposing 

 tooth, and has, in its overgrowth, penetrated into the upper jaw. 

 A certain amount of overgrowth is also seen in the first and 

 second right upper molars, and in the first left lower molar. 



G. C. 3115. 



Presented by A. Allen, L.R.C.S., 1889. 



ATEOPHY. 



PHYSIOLOGICAL — FROM OLD AGE. 



1. 18. Atrophy of Mamma in Old Age.— Sections of mammary 

 glands from two women, one adult, the other aged,— in spirit. 



The great contrast in size and thickness is at once 

 apparent. G. C. 3101 and 3101a. 



Presented by Charles W. Cathcart, 1889. 

 For Atrophy of Bone, see Series 6. 



FROM DIMINISHED FUNCTIOX. 



1. 19. Atrophy of the Femur from Disease and Disuse.— 



Eight femur of a young man, macerated and dried, showing the 

 above changes. 



The patient, for nine years before death, had been bedridden from 

 spinal caries and psoas abscess. His age was said to have been 27 

 years, but his appearance after death was described as more like that of a 



