NO. l8 ANTHROPOLOGICAL WORK IX PERU — HRDLICKA . 67 



ATLAS 

 Number of bones examined 3! 



Of these: 



Arthritis 1 



about condylar and odontoid facets. 



Exostoses 1 



a process for articulation with a paroccipital 

 process. 



Special 

 Congenital union with axis 1 



AXIS 



Number of bones examined 36 



Of which : 



Arthritis 3 



2 about lower surface of body. 



1 probably arthritic synostosis with third. 



OTHER VERTEBRA 

 Number of bones examined 822 



Of which : 



Arthritis (superiorly or inferiorly) 92 



mostly lumbar; synostosed : 2 lumbar ; 5 lumbar 

 with 6 dorsal (in one). 



Other lesions: body moderately flattened 1 



Special 



Five of the lowest lumbar, and one of the upper lumbar, show 

 a separation (congenital) of the posterior part of the 

 arch. 



Two cervical vertebra are conj enitallj joined. 



STERNA 



Number of bones examined -'° 



Pathological ° 



Special 



In 4 manubrium attached; in 22 manubrium separate; in 

 3 the body shows an aperture in lower third. 



