boas]
��THE CEPHALIC INDEX
��459
��II. Coefficients of Double Correlation,
��A verage c Determined by :
��1
��A verage I Determined by :
��A verage b Determined by :
1 h
��-4-0.40 +0.57 + 0.69 — 0.22 + 0.76 — 0.17 ...
+ 0.44 . — + 0.29 •••• !+°«47 •••• +0.15 .... + 0.83 •••• — °«36 .... -j-0.41 + 0.33+1.46 + 0.17+0.49 +0.37
.... 4- 0.67 +0.44 ....
.... -j-0.59 .... + 0.12
-f- o. 36 + 0.431 ••••
A verage h Determined by
c 1 b
��. ... + 0.24 + 0.36 .... I + 0.28 — 0.10 ....
. ... 0.00 + 0.38 .... 0.00 .... -|-o.6i
— 0.13 -|- 0.64
��+ 0.35 -f-0.17
+ 0.80 .... — 0.53 ....
-(-0.46 — 0.04
.... -f-0.38 — o. 10 .... .... + 0.34 .... + 0.06 — O. I9 + O.3O
��4- 0.30-1-0.331
A verage z Determined by :
c 1 b h
+ o. 39 + o. 1 8
+ 0.15 +0.51
+ 0.51 — 0.04
.... +0.26 -f-0.55 ....
+o«37 -f-o.o6
-f- O.61 -j-O. Ig
��III. Coefficients of Triple Correlation.
��A verage c Determined by ,
��1
��A verage I Determined by :
��+O.28 + O.544-O.35
+0.4I + O.59 ....
+0.3 2 +O.27+O 32 +O.39 +O.I6 +O.I7
��O.03
��.. +O.67 + O.45 O.OO
��4-O.63 — 0.17 + 0.09 +O.65 — O.38 +0.29
��A verage h Determined by :
1 b
��. ... +0.06+0.31+0.29
A verage z Determined by :
1 b
��A verage b Determined by :
C 1 h Z
+O.S9 — O.I I — O.36
+O.60 — O.25 .... +O.4I
+O.66 —O.37+O.36
+0.04 — O.I4+O.63
��+ O.75+O.O7 — O.53
��O.O4 + O.28 + O.58
��+ O.37 + O.I9 —O.07 1+0.43 + O.I9 —O.06
+ O.78 — 0.65 + 0.25, O.OO +O.61 +O.I8
+O.34 — O.I9 + O.181 +O.22 + O.56 + O12
IV. Coefficients of Quadruple Correlation.
��Determined by
��z Variability of A rray.
��Average c +032 +0.67 +0.36 —0.08 of c = 0.47 pt c
Average 1.. +0.63 .... —0.36 +0.03 +0.79 of 1 = 0.79//, Average b.. +0.69 —0.16 .... —0.52 +0.41 of b = 0.54/4
��Average h . +0.77 +0.03 —0.65 Average z.. —0.17 +027 +0.70 +0.19
��+ 0.18 of h = 0.78 /i h of z = 6<y // z
��These data show that the diameters of the skull are primarily determined by its capacity. The height of the skull appears to be most closely associated with its capacity, the length seems to be least closely related to it. I presume this is due to the fact
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