1910-11.] Bone Growth in absence of Functioning Testicles. 105 
A comparison of the naso-alveolar length with stature makes this 
obvious. The figures of this comparison are given in Table II. 
Table II. — Naso-alveolar Length compared with Stature. 
Stature = 100. 
Naso-alveolar Length. 
Stature. 
Index. 
mm. 
mm. 
Subject A 9 
68 
1732 
3 9 
Seven Irishmen 
73-4 
1710 
4-26 
This shows that not only was the superior maxilla absolutely smaller 
than usual in A 9, but also that it was relatively far smaller. 
It is interesting to discover in which part of the superior maxilla the 
growth failure was most marked. This can be sufficiently accurately 
determined by comparing the nasal height and the naso-alveolar length. 
Table III. — Nasal Height compared with Naso-alveolar Length. 
Naso- Alveolar Length = 100. 
Nasal Height. 
Naso- Alveolar 
Length. 
Index. 
mm. 
mm. 
Subject A 9 . 
45 
68 
66T 
Seven Irish skulls . 
53*7 
73*4 
73T 
The lower the index in this table, the greater is the relative depth of 
the alveolar process of the superior maxilla. The low index, 66'1, shows 
that in subject A 9 the alveolar process is very deep. But the alveolar 
process forms not only relatively a large part of the superior maxilla, 
it is also absolutely much deeper than in the normal Irish skull, for 
the measurement in A 9 is 23 mm., whereas the average of seven normal 
skulls is 19*7 mm. 
This indicates that in the superior maxilla of A 9 there was a partial 
failure in the development of the body of the hone, and simultaneously 
some overgrowth of the alveolar process. 
In the mandible the most striking departures from the normal propor- 
tions are the relatively great symphysial depth and coronoid height. 
The preponderance of the mandibular element in the facial height is 
shown by comparing the symphysial height with the naso-alveolar length. 
