“…7. 1 8.0 11.2 10.3 10.7 10.1 10.7 9.8 (Shaw, 1931) Melanesian 9.7*11.3 11.1 10.7 11.3 10.6 New Britain (Stein and Epstein, 1934) So familiar have standard deviations for cranial traits become, that when checking over the statistical work of a student a teacher would immediately detect any marked aberration in the value of a standard deviation for any particular trait; for example, in running the eye down our collation of standard deviations for head length (p. 99) the value of 7.13±0.57 is noted at once as being high for that measurement. The reason is not far to seek, since this standard deviation expresses the high variability of head length of a series of deformed skulls from Malekula.…”