Page:Proceedings of the Royal Society of London Vol 69.djvu/357

Rh (a.) Cephalic Index of Honours Men.

Honours.

Under 80.

Over 80.

Totals.

88

65

153

2nd class

113-5

68-5

182

3rd class

106

83

189

Totals

307'5

216-5

524

Miss M. A. Lewenz worked out the correlation, first grouping the first and second class together, and then the second and third class to form a fourfold table. In the first case we have correlation between ability and dolichocephaly = 0-0641 0'0487, and in the second case = - 0'0254 0'0490. The probable error is of the same order as the coefficients, and neither result is significant. \Ve conclude that there is nothing whatever to show that great ability as evidenced by the competitive-examination test is related especially to either dolicho- cephaly or brachicephaly.

(!>.) Length of Head of Honours Men.

Honours.

1st class. , 2nd class 3rd class

Totals

Under 7" '65.

68

94

102

264

S5 88 87

260

Totals.

153 182

180

524

Grouping first and second class together, Miss M. A. Lewenz found r = 0'0865 0-0471 for the correlation between great ability and long- headedness, sensibly the same as that found on p. 335, when the poll men were taken into account. Grouping second and third class together, the value of r rose to 0'1263 0'0439, the probable error of the differ- ence being greater than the difference. Before commenting on this I give the table for breadth of head :