110 Proceedings of the Royal Society of Edinburgh. [Sess. 
Table XII. — Comparison of Length with Breadth of First Rib. 
'"'■y 
A, Length 
of Rib. 
B, Breadth 
of Rib. 
Index : 
If A = 100, 
B = 
mm. 
mm. 
First rib of subject A 9 . 
133 
20 
15 
Normal first rib (aver- 
age of ten Irish speci- 
mens) .... 
120 
19 
15-8 
The first rib is therefore slightly disproportionately narrow at its an- 
terior end. 
The ossification of the ribs is not quite complete. 
In all the ribs from the first to the eleventh inclusive the epiphysis for 
the head is not completely joined. In the fifth, sixth, and seventh ribs the 
junction of the epiphysis for the articular part of the tubercle is extremely 
recent, the line of junction being still visible. 
4. Pelvis. 
The pelvis is large, but well-proportioned. 
Before maceration a most striking feature was the great thickness of 
Table XIII. — Dimensions of the Pelvis. 
Subject A 9. 
Normal (13). 
mm. 
mm. 
Breadth ......... 
288 
279* 
Height 
227 
220* 
Breadth-height index ....... 
78 
79 
Between anterior superior spines .... 
233 
231* 
Between posterior superior spines .... 
73 
Between ischial tubera ...... 
126 
Greatest diameter of cotyloid cavity .... 
61 
Transverse diameter of obturator foramen . 
52 
Vertical diameter of obturator foramen 
35 
Obturator index ........ 
67-3 
Transverse diameter of brim ..... 
132 
130* 
Conjugate diameter of brim ..... 
111 
104* 
Pelvic index ........ 
84 
80 
Depth of symphysis pubis ...... 
43 
Depth of pelvic cavity 
120 
Length of sacrum 
111 
102t 
Breadth of sacrum 
128 
113+ 
Sacral index . . . . . 
115 
111 + 
Height of innominate bone 
227 
196+ 
Breadth of innominate ...... 
170 
150+ 
Height-breadth index ....... 
75-7 
76 
* Average of sixty-three male pelves, Verneau, Traite d'Anatomie , Poirier and Charpy, 
tome i. p. 216. t Average of ten Irish specimens. 
