i)i;. A. LEE AM) PROEESSOII Iv. PEARSOX OX 
258 
from (16) is 1376 cubic centims. These are in fairly good agreement. The average 
capacity is thus veiy sensibly larger than that of the British Association women (p. 251). 
Tap.le XXVII.—Head Measurements and Estimated Skull Capacity of 30 Bedford 
College Women Students. 
Students. 
L. 
P. 
II. 
Formula (14). 
Formula (16). 
Xo. 1 
200 
157 
141-5 
1647 
1593 
o 
198 
154 
138 
1565 
1531 
•> 
196-5 
149 
140 
1527 
1491 
55 
190 
151-5 
141 
1514 
1471 
„ 5 
187 
151 
143 
1508 
1458 
,) G 
189 
151 
141-5 
1507 
1463 
„ 7 
195 
144 
142 
1489 
1450 
„ 8 
191 
150 
139 
1488 
1453 
„ 9 
200 
145 
1.35 
1463 
1450 
„ 10 
195 
149 
134 
1456 
1442 
„ 11 
194-5 
144 
139 
1456 
1427 
„ 1:1 
199 
146 
133-5 
1450 
1442 
„ 13 
190 
150 
1.35-5 
1446 
1424 
,, 14 
190 
149 
131 
1393 
1387 
„ 13 
192 
155 
124 
1385 
1408 
„ 1(3 
194 
149 
126 
1368 
1384 
„ 17 
187 
148 
130 
1354 
1350 
„ 18 
188 
147 
1.30 
1352 
1349 ' 
„ 19 
180 
152 
129 
1331 
1327 1 
„ 20 
189 
142-5 
1.30 
1321 
1318 , 
„ 21 
186 
147 
128 
1320 
1322 
O-T 
184 
148 
127 
1306 
1310 
23 
55 
187 
145 
127-5 
1306 
1.309 
„ 24 
192 
138 
130 
1302 
1303 
„ 25 
187 
137 
133 
1289 
1276 
55 
187 
142 
127 
1276 
1281 
„ 27 
187 
138-5 
127 
1248 
1251 
„ 28 
180 
141 
127-5 
1230 
1225 
„ 29 
186 
135 
127 
1213 
1214 
„ 30 
170 
148 
125 
1 
1200 
1196 
From my Tables XXV. to XXVII. I conclude that there is certainly no marked 
correlation between skull capacity and intellectual alnlity. 
There is another standpoint, however, from which these things may be considered. 
I know of no measurements upon which a direct determination of the correlation of 
brain iveujht and skull capacity could be made. Of course, the two are nc)t 
proportional ; still, there can hardly be a doubt that they are highly correlated. 
Now, if two quantities are correlated with a third, it does not invariably follow that 
they will be correlated with each other.Yet I take it that it is rather quantity than 
density of brain stuff which is at the basis of the current belief that size of brain is 
closely related to intellectual ability, and that any illustration of tlie absence of 
* A child is corrtdated with Loth parents, but, unless there be sexual selection, the j)arents are not 
correlated with each other. 
