268 BUREAU OF AMERICAN ETHNOLOGY [bull. 52 



Ribs. — These are light, dry, quite easily broken and apparently 

 not mineralized in any degree. They indicate a child. They are 

 all regularly formed. A few appear slightly thicker than usual/ 

 owing largely, if not entirely, to the age of the subject. 



Vertehrse; sacrum. — There are present 10 pieces, representing sev- 

 eral dorsal, lumbar, and sacral vertebrae. All the epiphyses are 

 wanting. The sacrum is represented only by separate, immature 

 segments. The right lateral mass of the fifth lumbar is large, sacral- 

 hke, articulating with the uppermost segment of the sacrum; later 

 in life it would doubtless have become part of the latter. The neural 

 canal of tliis vertebra measures from above 2.5 cm. in breadth and 

 1.4 cm. in its antero-posterior diameter. 



Femora. — None of the epiphyses are attached; the bones are light 

 with no f ossilization perceptible. The shape of the shaft approximates 

 cylindrical, wliich is typical of childhood. Its antero-posterior bend 

 is very moderate, the lateral slight. The external lip of the sub- 

 trochanteric flattening is well differentiated. The right bone shows 

 on its posterior aspect four fresh cuts. 



Measurements of the Siasgo femora: 



Right. Left, 



cm. cm. 



Length, minus epiphyses (?) near 34. 



Diameter antero-posterior at middle 2. 1 1. 95 



Diameter lateral at middle 2. 2. 05 



Pilasteric index 105. 92. 9 



Diameter maximum, at upper flattening 2. 65 2. 60 



Diameter minimum, at upper flattening 1. 95 1. 95 



Platymeric index 73. 6 75. 



Tihise. — Left bone only, without epiphyses. Shape of shaft pris- 

 matic. Anatomically without special features. Head deficient. 

 Surface of bone eroded as if by roots. 



Measurements of the Siasgo tibia: 



cm. 



Diameter antero-posterior at middle : 2. 5 



Diameter lateral at middle 2. 



Index at middle SO.O 



Diameter antero-posterior at the nutritive foramen 2. 8 



Diameter lateral at the foramen 2. 2 



Index 7^. 6 



Ulna. — Fragment, upper epiphysis wanting; lower? No special 

 features. 



Radius. — Part of the proximal extremity; epiphysis wanting; no 

 special features. 



Astragalus. — The bone measures 4.75 cm. in its greatest length, 

 3.85 cm. in its greatest breadth, and 2.60 cm. in its greatest height 



• One of the longer ribs measures at middle of the shaft 0.65 x 0.9 em : another, from p. slightly lower part 

 of the thorax, 0.4 x 1.4 cm., and still another, from about the middle of the thorax, 0.6 x I.O cm. 



