The carrying angle was measured on both arms of 50 [male] [male] and 50 [female] [female], aged 19-28, attending a gymnastic training course at Basel. With the limb fully extended and supinated, the longitudinal axes of the upper arm (from middle of humeral head to middle of elbow joint) and forearm (from middle of wrist joint to middle of elbow joint) were detd. by the eye, and the angle between the axes was measured . The mean values were [male], 6.49[degree]; [female],12.89[degree][long dash]a significant difference of 6.4[degree]. No difference was found between the right and left arms, nor was there a consistent difference between the arm that was mainly used in physical training and the opposite arm. There was a low positive correlation between the carrying angle and the greatest (intertrochanteric) hip width (+0.35 for 50 [female] right arms). The leptosomatic body type was to some extent associated with a small angle, the pyknic type with a large angle, and the athletic type , with an intermediate one. Radiographs showed that the small carrying angle was not due to the greater curvature of the humeral shaft, but to the small angle between the elbow joint axis and the forearm axis.