62 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 01 



XI. APPENDIX B. STATISTICAL DATA ON PATHO- 

 LOGICAL CONDITIONS OF THE SKULLS AXD 

 BONES EXAMINED IN 1913 IN THE CHICAMA 

 VALLEY 



SKULL 



Number of crania examined in this lot : adults or near 



children 16 



Total 278 



Of which: 



Ear exostoses (generally bi-lateral) including in one 

 adolescent 19 



Osteoporosis, signs of J children 3 



I adults ' 8 



Osteoma, on frontal, small 1 



Erosive perforation, frontal 2 



Arthritis, slight, in one glenoid fossa 1 



Cicatrix on left inter-maxillary (cause?) 1 



LOWER JAWS 

 Number of bones examined (adults) 160 



Pathological : No lesions at all except those due to teeth, and even those 

 rare. 



Caries decidedly infrequent; of 708 teeth in the 160 jaws only 16, and of 

 the 788 teeth present in all only 17 were more or less diseased. The absent 

 teeth were mostly lost post mortem. 



HUMERI 



Number of adult bones examined 593 



Number of children bones examined 57 



Total 650 



Of these: 



Fractures adult 1 



Dislocations o 



Exostoses adult 1 



Moderate, above deltoid ridge. 



Arthritis adults 12 



6 slight, lower joint. 

 3 moderate, lower joint. 

 3 pronounced, lower joint. 



1 The cases in the adults represent merely remnants of the lesions of child- 

 hood. 



