48 A Study of the Variations in the Female Pelvis 
Table of Pelvic Measurements of 
1N0. 
Pea body 
AVI Ll >it^ LI 111 
No. 
rn -1 
1 ri be ox' 
iJUUiu 1 i y 
Inter- 
crests 
cms. 
Intsr- 
Inlet 
Pelvic 
CD 
§ 
Oblique 
Diameter 
Obstetric 
Conjugate 
Difference 
Index 
Antero- 
posterior 
Diameter 
Fetal Head 
Inter-tubers 
Posterior 
Sagittal 
Pubes to 
Perpendicular 
1 
11,970 
Tennessee 
25-5 
23-25 
13-1 
12-7 
11 
1 "7 
84 
12-5 
10-75 
9 
7 3 
7 
2 
57,506 
Ohio 
27-25 
25-25 
13-5 
12 - 5 
11-25 
1-25 
81 
10-8 
10-5 
9 
8-3 
4-5 
3 
26,630 
j? 
26 
23-75 
12-5 
13-25 
1T75 
1*5 
94 
11 
9-5 
8-1 
6-8 
5-3 
4 
26,989 
11 
26-5 
23-75 
12-75 
11-3 
9-5 
1 -8 
74-5 
11-6 
12 
10-3 
8-3 
4-5 
5 
13,551 
California 
24 
20 
13 
12-2 
11-2 
1 
86-2 
10-6 
11 
9-2 
7-7 
4 
6 
13,238 
n 
23-75 
20 
11-75 
11-75 
10'75 
1 
91-4 
11-15 
11 
10 
8 
4-2 
7 
13,240 
ii 
27 
24-5 
14 
11-4 
10'1 
1 - 3 
72 
11 
11 
10-1 
7-7 
42 
8 
13,239 
ii 
26-25 
22-75 
13-25 
12-3 
10-6 
1 -7 
80 
11 
9-5 
9 
6-7 
5-8 
9 
13,286 
ii 
25-5 
20-7 
13-25 
12-3 
11 
1-3 
83 
10-8 
10 
8-85 
7-4 
4-5 
10 
13,448 
ii 
25 
22 
13 
12-1 
10-4 
1 "7 
80 
10-9 
11 
9-9 
7-6 
4-5 
11 
57,883 
ii 
27-5 
25 
13-25 
1T5 
9-5 
2 
71-1 
13-75 
12-5 
10 
10-5 
4-5 
12 
13,553 
" 
25-5 
20-5 
13-75 
11-5 
10-2 
1-3 
74-2 
13 
10 
9-1 
7-5 
4-85 
13 
13,554 
n 
26-25 
21 
14-25 
1T5 
9-5 a 
2 
66-6 
14-66 
13 
12-75 
8-24 
36 
u 
12,248 
ii 
24 
22 
12 
12-9 
10-9 
2 
90-8 
13 
12 
10-35 
8 
6-2 
15 
13,232 
ii 
26-75 
22-5 
13-5 
11-5 
9-35 
2-15 
69-3 
11-75 
10-5 
10-1 
7-1 
6-15 
1G 
13,545 
ii 
24-75 
22 
12-75 
12-5 
10-5 
2 
82-3 
11 
10-25 
9-9 
7 
5 
17 
] 3,546 
ii 
27 a 
24-5 a 
13 
14-7 
13 
1 -7 
100 
12-75 
11 
10-2 
7-5 
5-6 
18 
13,547 
ii 
25-5 
23 a 
13 
12-3 
ll a 
1-3 
84-6 
11-25 
11 
10-1 
7-8 
4-6 
19 
13,548 
ii 
26-25 
23 
13-5 
12-2 
11 
1 -2 
81-4 
12 
10 
9 
7-75 
6 
20 
48,009 
Mexico 
24-75 
21 
13-9 
11 
9-8 
1-2 
70-5 
12-25 
10-5 
9-5 
7-3 
6-25 
21 
57,782? 
California 
27 
24-25 
14 
12-2 
10 
2-2 
7T4 
10-75 
12 
11-7 
7-2 
5-6 
2® 
58,143 
Iroquois, N. Y. 
27 
25-5 
13-25 
12-4 
10*2 
2-2 
73-6 
9 
10 
9-8 
7-5 
4-65 
23 
8,359] 
Flat Head 
27-25 
25-5 
14-25 
12 
10-25 
1-75 
71 -9 
11-1 
11 
10-3 
6-6 
5-5 
24 
57,458 
New York 
25-25 
23-5 
12-5 
11 -7 a 
9 - 5 a 
2'2 a 
76 
12 
11 
9-1 
8-1 
5-1 
25 
2,347 
Kentucky 
25-25 
22 
13 
12 
10-5 
1"5 
80-8 
12 
11 - 5 
10-9 
8-2 
5-1 
26 
2,346 
ii 
28-5 
26-25 
14 
13-2 
11-5 
1-7 
82-1 
13 
10-5 
9-5 
7-7 
6-5 
27 
2,350,111 
„ 
27-5 
23 
13-5 
12-25 
10-75 
1-5 
79-6 
11-7 
10-5 
8-8 
8-2 
4-6 
28 
11,972 
Tennessee 
23-5 
22 
13 
1 9 
1 £i 
1 o 
QO ■ 
I 1 *7'S 
II i o 
1 1 o 
10'2 
8 - 6 
4 
29 
11,861 
n 
27 a 
24 a 
14 
12-6 
11 
1-6 
78-6 
ii 
10 - 75 
10-1 
7-8 
4 
30 
57,512 
ii 
i, 
25-5 
23-25 
14 
11-5 
9-8 
1-7 
70 
12-25 
12 
10-3 a 
8-8 
4-6 
31 
27,213 
26 
24-25 
13 
11-5 
10-25 
1-25 
78-8 
10-25 
10 
9-7 
7 
4-15 
32 
32,435 
Massachusetts 
26 
23-25 a 
13 
11-5 
10 
1-5 
77 
11-2 
10 
8-8 
6-5 a 
5-7 
33 
10,262 
ii 
23 
20 
12 
12-5 
11 
1-5 
83-3 
9 
8-1 
6 
6-4 a 
34 
47,998 
,i 
28-5 
27 
13-5 
13-1 
11 
2-1 
80-4 
12 
10 
8 
8 
6-1 
35 
57,779 
Arizona 
25 
23-3 
13 
9-8 
7 '75 
2-05 
59-6 
11 
10-5 
10 
6-5 
5-4 
36 
58 005 
Ohio 
25 
22'5 
12 
12 
11 
1 
83-3 
12 
12-5 
10-8 
9-5 
4 
37 
58'022 
ii 
27-5 
25 a 
12 
14-8 
IV 
9 
0-8 
107-7 
13 
12 
10-3 
8 
5-5 
38 
58,049 
ii 
26 
24 
13 
11-7 
2-7 
69-2 
12-5 
11 
10 -4 a 
6-5 a 
7 a 
39 
58,056 
ii 
27 a 
24-25' 1 
12-75 
13-2 
11-5 
1-7 
90-2 
11-25 
11 
9-9 
8 
4-7 
40 
58,023 
ii 
26-25 
23 
13 
14-1 
13 
1-1 
100 
12 
12 
12 
7-8 a 
6 
M 
58,057 
ii 
23 a 
20"75 a 
12 
13-2 
10-25 
2-95 
85-4 
10-25 
975 
8-8 
7-6 
4-5 
42 
58,453 
ii 
25-75 
23-5 
13-5 
11-2 
10 
1-2 
74 
12 
11-5 
10-2 
8 
5-5 
0O,40o 
ii 
zo 
20 
14-5 
12-3 
10-5 
1-8 
72-4 
12 3 
12 
10-6 
9 
5 
U. S. N.M. 
44 
227,463 
Alaska 
23-1 
20-5 
11-2 
12 
9-7 
2-3 
86-6 
10-3 
9 
10-6 
6 
5-4 
45 
225,473 
Apache 
25-75 
23-8 
13-9 
12-7 
10-2 
2-5 
75-5 
12-2 
11-5 
10-7 
8-7 
6 
46 
228,361 
ii 
25-5 
22 
11-5 
11-9 
10-2 
1-7 
88-7 
10-2 
9-5 
8-5 a 
7-2 
39 
47 
226,290 
Arizona 
26-5 
23 
138 
11-8 
9-5 
2-3 
69-5 
12-2 
9-75 
8-4 
7-1 
6-3 
1. One sacral segment probably from coccygeal end. 3. Last lumbar articulates with left 
sacral ala. 5. Four sacral segments. No evidence of more at either end. 6. First sacral tran- 
sitional. False promontory. 7. False promontory. 10. Congenital dislocation of right hip. Two 
sockets. Inlet diagonals, right 12 - 3, left 12'3. 11. Coccyx ossified to sacrum (not included), distorted. 
12. False promontory. 13. Wide outlet (Plate VII, 9). 15. Well proportioned symmetrical sacrum 
(Plate VII, 8 and 10). 17. Coccyx ossified to sacrum (not included). 20. Tapering sacrum. 
(Note: "a" means an approximate measurement often due to a broken bone. Italics signify high or low 
value or some peculiarity referred to in text.) 
