Lower Jaw. 
REPORT ON THE HUMAN CRANIA. 
75 
the ascending ramus was high. In the other, a female, the bone was not so strong, and 
the ascending ramus was much shorter. 
The mean cephalic index of the eight adults was 7 5'2 ; the range of variation from the 
maximum 80 (male), to the minimum 72 (male), was 8. The crania were therefore, on the 
average, just within the mesaticephalic group, although three of the skulls were below 75. 
The mean vertical index was 73, and the range of variation from the minimum 70 (male) 
Table XIII. — Chatham Islanders (Moriori). 
Collection, 
ChaL A. 
Chal. B. 
E.U.A.M. 
E.U.A.M. 
Whare- 
E.U.A.M. 
Chal. C. 
E.U.A.M. 
Chal. D. 
A. 
B. 
kauri. 
D. 
C. 
Age, 
Sex, 
Ad. 
Aged. 
Ad. 
Aged. 
Ad. 
Ad. 
Ad. 
Ad. 
6 th 
M. 
M. 
M. 
M. 
M. 
M. 
F. 
F. 
Year. 
Cubic capacity, 
1458 
1444 
1380 
1306 
1488 
1492 
1185 
1342 
1492 
Glabello-occipital length, . 
192 
190 
191 
190 
191 
185 
177 
184 
183 
Ophryo-occipital „ 
190 
188 
188 
185 
186 
180 
177 
182 
184 
Basi-bregmatic height, 
144 
135 
134 
133 
142 
142 
129 
134 
123 
Vertical Index , 
75 
71 
70 
70 
76 
77 
73 
73 
67 
Minimum frontal diameter, 
104 
104 
95 
92 
102 
96 
92 
88 
88 
Stephanie, ,, 
116 
110 
102 
107 
114 
116 
101 
102 
107 
Asterionic, „ 
lUp 
lUp 
110s 
110 
110 
108 
101 
108 
104 
Greatest breadth, . 
146 
138 
144 
136p 
146s 
148p 
132 p 
137p 
139 p 
Cephalic Index , 
76 
73 
75 
72 
77 
80 
75 
74 
76 
Horizontal circumference, . 
548 
532 
538 
520 
542 
525 
495 
508 
508 
Frontal longitudinal arc, . 
140 
131 
133 
130 
132 
135 
117 
129 
118 
Parietal ,, ,, 
119 
124 
123 
124 
122 
I I 
129 
122 
120 
Occipital „ „ 
123 
113 
132 
124 
126 
h JiOo 
106 
116 
137 
Total )) ^ j • 
382 
368 
388 
378 
380 
388 
352 
367 
375 
Vertical transverse arc, 
320 
301 
310 
286 
315 
316 
281 
290 
38 
Length of foramen magnum 
34 
34 
28 
32 
34 
32 
30 
34 
Basi-nasal length, . 
113 
108 
103 
no 
111 
104 
100 
101 
89 
Basi-alveolar length, 
106 
100 
103 
104 
104 
102 
100 
98 
80 
Gnathic Index, 
Interzygomatic breadth, 
94 
92 
100 
94'5 
94 
98 
100 
99 
90 
144 
138 
139 
130 
144 
138 
132 
126 
106 
Intermalar „ 
128 
126 
120 
119 
122 
130 
116 
116 
94 
Ophryo-alveolar length, 
95 
94 
91 
84 
102 
95 
81 
86 
81 
Naso-alveolar „ 
76 
71 
71 
63 
77 
67 
61 
67 
60 
Facial Index, 
66 
68 
65 
65 
71 
61 
68 
76 
Nasal height, 
58 
56 
60 
51 
57 
5i 
46 
53 
44 
Nasal width, 
28 
25 
25 
25 
26 
25 
25 
25 
20 
Nasal Index, 
48 
44 
42 
49 
46 
49 
54 
47 
45 
Orbital width, 
40 
38 
39 
40 
38 
40 
38 
38 
31 
Orbital height, 
35 
36 
37 
33 
35 
j2 
31 
33 
33 
Orbital Index, 
Palato-maxillary length, 
87-5 
95 
95 
82-5 
92 
80 
82 
87 
106 
58 
56 
54 
54 
58 
55 
53 
56 
42 
Palato-maxillary breadth, . 
66 
64 
65 
61 
65 
64 
59 
60 
57 
Palato-maxillarxj Index, . 
114 
114 
120 
113 
112 
116 
111 
107 
136 
Symphysial height, 
32 
36 
30 
29 
23 
Coronoid „ 
80 
84 
66 
61 
50 
Condyloid „ . 
69 
73 
58 
61 
45 
Gonio-symphysial length, . 
107 
102 
99 
94 
77 
Intergonial width, 
103 
100 
90 
74 
Breadth of ascending ramus, 
41 
... 
40 
4i 
43 
32 
