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 = 

 II. Index 6 = 



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 , 



length 01 torearm 



hand breadth X 100 

 Hand index - 



hand length 



,.,. . ,. , length of lower leg X 100 



Tibio-femoral index - r f ^, . , 



length of thigh 



length of foot X 100 



Lower leg-foot index 



Intermembral index I 



length of lower leg 



length of entire arm X 100 



length of entire leg 



, . , TT length; upper arm + forearm XI 00 

 Intermembral index II - 



length; thigh + lower leg 



length of upper arm X 100 

 Femoro-humeral index - 



length of thigh 



m., . length of forearm X 100 



Tibio-radial index - 



length ol lower leg 



. , . max. girth upper arm* X 100 



Upper arm girth index - 



length of upper arm 



max. girth forearm X 100 

 Forearm girth index - ^ 



length of forearm 



,. . max. girth forearm X 100 

 Arm proportion index - 



max. girth upper arm* 



min. girth forearm X 100 

 Forearm proportion index - 



max. girth forearm 



* with biceps muscle not contracted. 



