“…We found an average of 14.0 g. in normal women and 15.6 g. in normal men. This difference is as a rule believed to be endocrinologically determined (2)(3)(4). W olf-H eidegger (5) however, examining 50 men and 38 women aged [22][23][24][25][26][27] in Basle, found no difference in erythrocyte counts and only a slight difference in haemoglobin values.…”