J.iv. 



FIG. 21. THE PELVIS. 



A' A", with depressed ; B, with high standing promontory (A' ventral view ; A" and B, 

 median longitudinal sections). In A" the highest point of the iliac crest almost reaches 

 the level of the upper edge of the penultimate lumbar vertebra (l.iv.). In B, on the 

 contrary (which is the original condition, and that still found in children), the upper 

 edge of the last lumbar vertebra (l.r.) is hardly reached. C' C", pelvis with double 

 promontory, caused by assimilation of the last lumbar vertebra with the sacrum (C', 

 median longitudinal section ; C", ventral view). In the latter the appearances are as 

 if the pelvis had shifted forward along the vertebral column. (After Froriep.) 



