360 REPORTS ON THE STATE OF SCIENCE. 



21. External conjugate diameter qf the pelvis. — From a point behind 

 midway between the posterior superior iliac spines to the upper and fore 

 part of the pubic symphysis in front. 



Measurements of Chest. 

 Circumference {taken ivith tape). 



Direct the person being measured to hold the arms straight up over 

 the head. 



Pass the tape horizontally round the chest at the level of the junction 

 of the fourth rib-cartilage with the sternum or breast-bone, then lower 

 arms, and, holding tape tightly, note circumference at the end of — 



22. Deeji inspiration. 



23. Complete expiration. — This latter is easily attained by asking the 

 subject to count twenty aloud quickly without inspiring. 



Before removing tape mark the level at which the measurements 

 have been taken with a blue pencil around the chest. 



If the finger be passed from the supra-sternal notch downwards over 

 the front of the sternum or breast-bone it soon meets a projecting ridge, 

 crossing the bone transversely. This gives the level of the second costal 

 cartilage, and, taking it as the starting-point, the fourth costal cartilage, 

 where it joins the sternum, can easily be determined. 



Diameters (taken ivith Callipers). 



2i. Antero-posterior diameter from mid-line in front to mid-line 

 behind (sternum to spine of dorsal vertebra) at the level of the blue line 

 previously marked. 



2.5. Lateral. — The maximum lateral diameter found with the callipers 

 held horizontally and blades tangential to side of chest at the level of the 

 blue line before referred to. 



Both these latter measurements should be recorded (I) iu deep 

 inspiration ; (2) in complete expiration.^ 



F. Upper Limb. 



1. Length of the upper arm. — From the outer margin of the acromion 

 to the lowest point of the external condyle of the humerus. The latter 

 point can easily be determined on the straightened arm by placing the 

 finger in the depression on the back of the outer part of the elbow-joint 

 and feeling for the joint interval between the humerus and radius. The 

 measurement is made down to this point and gives approximately the 

 length of the humerus. 



' The reasons which have prompted the Committee to select the level of the 

 junction of the fourth costiil cartilage with the sternum for measuring the dimensions 

 of the chest will be found stated at some length in the Report of the Anthropometric 

 Committee, Section H, Leicester, 1907. The Committee are inclined to regard with 

 favour the data obtained b}' the calliper measurements of the mesial antero-posterior 

 and of the transverse diameters of the chest. For reasons which will be evident, 

 useful data regarding the circumference of the chest, measured by the tape, cannot 

 be obtained in the adult female. It is therefore recommended that the observer 

 should restrict the chest measurements in the adult female to the determination of 

 the diameters of the thorax obtained by means of the callipers. 



