50 A Study of the Variations in the Female Pelvis 
Table of Pelvic Measurements of 
Inlet 
Pelvic 
Inter- 
Inter- 
OD 
CD 
No. 
U. S. N. M. 
Tribe or 
crests 
CD 
01 
CD 
03 
a 13 
No. 
Locality 
cms. 
spiues 
t» 
a 
03 
M 
H 
Oblique 
Diamete 
Obstetri 
Conjuga 
B 
CD 
iS 
5 
Index 
. 0 CD 
^ H CD 
»5 a 
a X =3 
Fetal He 
Inter-tub 
Posteric 
Sagitta 
Pubes ti 
Peipeudic 
48 
213,331 
Arizona 
26 '1 
22"7 
"12-8 
11 
9-3 
1-7 
72-0 
10-6 
9-5 
9-5 
6-75 
5-3 
49 
229,303 
11 
28 '2 
26 '0 
14-7 
12-2 
10-2 
2 
09-4 
13 
13 a 
12-7* 
8-5 
5-7 
50 
239,201 
» 
27 '5 
25 
14-3 
12-2 
10-6 
] -6 
74-1 
12-0 
12 
10-9 
8-2 
6 
51 
239,202 
26 
22'5 
13-3 
11-1 
8-9 
2-2 
07 
12-3 
11 
10-5 
6-6 
6-5 
5..' 
239,203 
28 
23'5 
13 
12-1 
10-2 
1-9 
78-5 
11-4 
11 
10-2 
8-2 
4-85 
53 
239,204 
» 
25*75 
23-5 
12-4 
10-4 
9-3 
1-1 
75 
12-0 
10-5 
9-2 
8 
6-2 
54 
239,215 
» 
25 
22 '25 
13 
12-2 
10-25 
2 
78-5 
10-9 
1 1-5 
10-7 
8 
5-8 
55 
239.291 
25 "25 
22 '25 
12-25 
12-3 
10-85 
1-5 
88'5 
10-5 
10-5 
9-2 
7-5 
4-4 
56 
239,293 
26 -25 
24-75 
13-2 
12-4 
10-7 
1-7 
81 
12 
11-5 
10-7 
8-1 
5 
57 
239,298 
" 
25 '5 
20 "5 
13-1 
12-5 
10 
2-5 
76-3 
10-9 
12 
10-9 
8-3 
3-75 
58 
239,305 
JJ 
25 '75 
22 
13-4 
10'8 
q.q 
0-9 
73 -Q 
1 0 0 
11-25 
11-5 
10 "3 
0 1 
4 - 5 
59 
239,309 
11 
27 a 
22 - 75 a 
12-3 
13-2 
11 -5 a 
1-7 
93-7 
12-5 
10 a 
S a 
7-5 
5-7 
60 
239,318 
11 
23 
21*25 
12-3 
10-1 
8-5 
1-6 
69-1 
10-25 
11 
9-7 a 
8-3 
2-9 
61 
239,333 
11 
28"5 
24-75 
14-2 
1 Ji 1 
in.-i 
1U I 
2 
7 1 • 1 
/ 1 1 
11-7 
1Z 
1 1 A 
/ 0 
K 'A 
62 
239,348 
11 
^O'S 
17 '2 
10-7 
10-5 
8-5 
2 
79-4 
10-25 
9-3 
8-3 
6-8 
4-6 
63 
220,292 
11 
26 
22 - 5 
13 
11 
9-2 
1-8 
70-7 
11-4 
11 
9-8 
7-5 
4-8 
64 
239,385 
11 
24'25 
21-5 
12-3 
12-3 
9-1 
3-2 
74 
10-6 
10-5 
9-6 
6-6 
5 
65 
239,446 
25 "75 
20 
13-0 
11-4 
9 
2-4 
60-2 
10-5 
10-5 
10-4 
6-2 
5-8 
66 
239,453 
11 
27-5 
24-25 
13-7 
11-3 
10 
1-3 
73 
12-3 
11-5 
10-3 
7-7 
5-5 
67 
239,474 
11 
26 
24 
13 
9-9 
S a 
T9 
61-5 
1 1 
9-5 
8-5 
6-7 
5-2 
68 
255,129 
Arkansas 
27-5 
25-5 
13-5 
13-8 
11-5 
2*3 
85-2 
12-9 
12-5 
10-6 
9-1 
37 
69 
258,768 
11 
26 "5 a 
21 -5 
12-1 
12-8 
11 
1-8 
91 
11-5 
11 
9-8 
8 
5-5 
70 
259,301 
25-15 
21-8 
13-6 
12-8 
11 
1-8 
80-9 
11 
12 
11-4 
7-6 
3-9 
71 
225,253 
Choctaw 
26-9 
24-5 
12-6 
13 
10-7 
2-3 
84-6 
11-9 
10 
9 
6-5 
6-6 
72 
49,735 
Colorado 
26-75 
23-75 
13-3 
11-2 
8-7 
2-5 
65-4 
11 
12 
11-4 
7 
4-4 
73 
225,214 
(Jomanche 
26"1 
23 '4 
13 
111 
8-3 
2-8 
63-8 
9-4 
9 
8-5 
6-6 
3-7 
74 
248,579 
iiiSkimo (Cit 1 
Michaels) \ 
27-75 
21 
13-6 
14 »> 
11 O 
2-5 
OD O 
13'4 
in..") - 
1U AO 
0.7c: 
0 io 
0 AO 
0 0 
75 
12,804 
Tennessee 
25 
22 - 3 
12-8 
13-5 
11 -5 
2 
89-8 
11 -4 a 
11 
10-2 
7-6 a 
4-6 
U. S. N. M 
76 
227,434 
Illinois 
22 
21 
12-2 
10 
8-6 
1-4 
70-5 
10-8 
9-5 
9 a 
1 7 
5-3 
77 
227,440 
11 
24'5 
22 a 
12-5 
11-6 
9-4 
2-2 
75-2 
11-8 
10 
9-35 
7 
5-9 
78 
227,441 
n 
21-9 
17'25 
11-5 
11 
9-7 
1-3 
84-3 
11 
10-5 
8-85 
8-1 
4 
79 
227,445 
11 
24 - 35 
20-5 
13 3 
14 
12 a 
2 
90-2 
12 
11 
10-3 
8-8 
5-2 
80 
227,448 
11 
25 
21 - 75 a 
12-1 
13-6 
11-8 
1-8 
97-5 
11-5 
10 
9-1 
7 
6-1 
81 
227,450 
11 
23-75 
20'75 a 
12-8 
13 3 
11-75 
1-6 
91-8 
11-5 
10-5 
8-85 
8 
5-1 
82 
225,420 
Kentucky 
26 - 8 
23-8 
12-8 
11-6 
lo-i 
1-5 
78-9 
11-8 
9-5 
8-5 
7 
6-5 
83 
225,422 
n 
28 - 3 
25-7 
13'4 
11-1 
9-8 
1 3 
73-1 
12 - 1 
11» 
9 
8 a 
6-9 
S4 
225,421 
11 
24 "2 
20-5 
12-6 
11-7 
10-4 
1-3 
82-8 
11-9 
11 -5 
10-85 
8-7 
4-5 
85 
225,423 
11 
26-3 
23-9 
12-6 
11-9 
10-2 
1-7 
81-3 
10-6 
9-5 
8-6 
6-9 
6-4 
86 
225 425 
11 
26 "5 
22 "5" 
12-8 
13-5 
12 
1-5 
93-3 
13-1 
12 
10-8 
8-1 
5-8 
87 
255^105 
Louisiana 
28-5 a 
25 a 
13 3 
11 
9-2 
1-8 
092 
11 
10-5 
9-8 a 
6-7 a 
6-3 
88 
255,214 
11 
26-5 
24 
13-1 
1.3-1 
11-3 
1-8 
86-2 
10-9 
10-5 
10 
7-2 
5-2 
89 
255,210 
n 
25'75 
22 
13-8 
12-4 
10-6 
1-8 
76-8 
12-2 
11-25 
10 
8-1 
6-1 
90 
216,213 
Mexico 
24 -5 a 
19-5 
11-5 
13-2 
11-1 
2-1 
96-1 
11-2 
10-75 
10-2 
7-1 
5-1 
91 
228,925 
New Mexico 
26* 
24 
13-5 
12-2 
10-8 
1-4 
80 
11 
11 
10-35 
7-5 
4-6 
92 
228,950 
11 
26 a 
21-5 
12-4 
11-9 
10 
1-9 
80-6 
12-3 
11 
10 
7-3 
6 
93 
228,967 
11 
27 a 
24 a 
13 
12-8 
10-4 
2-4 
80 
12 
10-25 
9-1 
7-5 
5-3 
51. (Plate IV, 4) sacrum. Transitional vertebra. 53. Six sac. vert., one from coccyx (?). 
57. Double promontory (Plate IV, 4). 59. Narrow arch. Exostoses on sacrum. 60. Four sac. vert. 
Extreme " female type " (Plate IV, 4). 62. Pygmy or very small pelvis (Plate 1, 1). 67. Small pelvis. 
68. Six sac. vert., one from coccyx (?). 71. Coccyx ankylosed to sacrum (not included). 72. Spinal 
canal open from 1st sacral down. 73. Rather flat pelvis (Plate II, 2). 74. Six sac. vert., one from 
