somatometry; the measurement of the body 165 



length or thoracic depth, could be referred, and through which they could 

 be compared with one another; the comparison would become unjust in 

 the case of an individual with an abnormally long neck, yet, in the major- 

 ity of cases, this standard would serve its purpose. 



Two such standards are commonly used, and the sets of indices are the 

 following: 



_ _ . any bodily measurement X 100 



I. Index a = , , , — 



total stature. 



any bodily measurement X 100 



trunk length (sitting height of sst). 



For this latter Martin uses the distance (projected) between height of 

 suprasternale and the perineal height; but as this latter point is not advo- 

 cated here, and is difficult to obtain, the distance sst — sciatic tubers is 

 substituted. 



(6) Convenient indices which bring out comparisons which are fre- 

 quently desired. 



length of forearm X 100 



Brachial index 



Forearm-hand index 

 Hand index 



length of upper arm 

 hand length X 100 



length of forearm 

 hand breadth X 100 



Tibio-femoral index 

 Lower leg-foot index 



hand length 



length of lower leg X100 



Intermembral index I 



length of thigh 

 length of foot X 300 

 length of lower leg 

 length of entire arm X 100 



length of entire leg 



T , t i- i tt length; upper arm + forearm XI 00 



Intermembral index LL 



Femoro-humeral index 

 Tibio-radial index 



length; thigh + lower leg 

 length of upper arm X 100 

 length of thigh 

 length of forearm X 100 



Upper arm girth index 

 Forearm girth index 



length of lower leg 

 max. girth upper arm* X 100 



Arm proportion index 



length of upper arm 

 max. girth forearm X 100 

 length of forearm 

 max. girth forearm X 100 



max. girth upper arm* 

 min. girth forearm X 100 



Forearm proportion index 



max. girth forearm 



* With biceps muscle not contracted. 



