14 



which conclusion they could not agree, as diiferent observers found 

 it in a variety of widely- separated races. 



On this account Zaaijer in 1893 published a further paper 

 entitled "Der Sulcus praeauricularis ossis ilei" in which he restated 

 his views in regard to the groove, and showed that the sulcus was 

 present in a number of pelves of different races, as well as in hip 

 bones of macerated skeletons obtained from the dissecting room. He 

 concluded 1) that the sulcus praeauricularis may be found more or 



Fig. 1. Left hip bone of a woman with a wide deep sulcus praeauricularis. From 

 the collection of Whitecbapel skeletons belonging to Prof. Thane. Note the width and 

 shallowness of the ilio-sciatic notch. 



less well-developed in all races, and 2) that it has no significance as 

 a racial character. 



In the second part of the same paper Zaaijee discusses the 

 meaning of this sulcus and disposes of the suggestion made by Verneau 

 that the sulcus is occupied in the recent state by the internal iliac 

 artery, and also of that of Hennig that it is for the origin of muscles 

 and fasciae. He concludes by re-iterating his original statement that 

 the praeauricular groove whether on the ilium or on the sacrum 

 gives attachment to the anterior sacro-iliac ligaments. As to the 

 reason of its very variable development in different pelves, he can 

 give no explanation, but suggests that vocation may have great in- 



