14 ALE HRDLIKA 



Commission does not possess sufficient details which would permit it 

 to fully gauge their importance and advise their regular employment. 

 In cases of this nature the Commission has contented itself with a 

 statement concerning the technique of the respective measurements, 

 without giving advice as to their use. 



In connection with each measurement is given an indication as to 

 the instrument which should be employed. The abbreviations are as 

 follows : 



e.g. compas glissiere, the sliding compass; 



c.e. compas d'epaisseur, the spreading compass; 



m.t. metric tape. This should be made of decidedly pliant mate- 

 rial, but without possessing in the least degree the quality of stretching. 

 Slightly starched cloth is of the best; and frequent testing of the tape 

 by a metal standard is indispensable. 



I. CRANIOMETRY 



A. THE SKULL 



1. Maximum length of the skull or greatest antero-posterior diameter; c.e. 

 This is the maximum glabello-occipital diameter of the vault. 1 

 Landmarks: Anteriorly the most prominent point of the glabella; 



posteriorly the most prominent point on the occiput as shown by 

 the maximum determinable spread of the branches of the compass. 



2. The Iniac antero-posterior diameter (optional) ; c.e. 

 Taken in the sagittal and median plane of the vault. 

 Landmarks: Anteriorly the most prominent point of the glabella; 



posteriorly the inion, the individual peculiarities of which should be 

 discounted. 2 



3. The maximum breadth of the vault, or the greatest transverse diameter; 



c.e. 



This is the greatest horizontal and transverse diameter which can 

 be found on the vault by the spreading compass. 



Landmarks: Determined solely by the maximum breadth of the 

 skull above the supra-mastoid and zygomatic crests. 



i 1 The French text reads: "C'est le plus grand diametre dans le plan sagittal et 

 median du crane." This definition is somewhat erroneous, for it seems to direct 

 that the measurement be taken to a point in the median line of the skull, while a 

 little further on this point is defined as "le point le plus saillant du sus-occipital donne" 

 par le maximum d'e*cartement des branches du compas." As a matter of fact the 

 point of maximum distance from the glabella is seldom strictly in the median line 

 of the occipital, even in absolutely normal specimens. The correct definition should 

 read as given above. A. H. 



* "dont les varie*te*s individuelles devront e"tre e"vite*es." 



