THE ST. JOHN'S RIVER, FLORIDA. 



65 



This stratum was in its turn surmounted by white sand which lay beneath the 

 brown sand composing the surface of the mound. 



HUMAN REMAINS. 



Superficial skeletons in anatomical order were numerous. Original interments 

 were mainly confined to the shell base, the first being encountered 22 feet from the 

 margin and 9 feet from the surface, and to the shell layer above, though some badly 

 decayed skeletons were found in the white sand. Their infrequency of occurrence 

 is in marked contrast to the quantities of bodies met with at Ginn's Grove and at 

 Tick Island. The bones lay in anatomical order, though it is not impossible that a 

 different form of burial exists in other parts of the mound. 



During the first investigation no crania were saved. 



Three humeri from the original burials were imperforate ; eleven from super- 

 ficial burials showed seven perforations, a percentage of 63"6. 



Five tibiaa from original burials gave an average index of 62. An equal num- 

 ber from interments near the surface showed an average index of 64. 



Our second investigation was confined to superficial portions of the mound. 



Four crania and two calvaria were saved. 



Htimeri {superficial') . — Of 21 humeri 13 showed perforation, a percentage of 

 61-9. 



Humeri (Superficial.) 

 Measureme7its are given in mm. 





Total. 



Average Perforation. 



Minimum 

 Perforation. 



Maximum 

 Perforation. 



Oscillation Exponent. 



Male 

 Female 

 Uncertain . 



3 

 3 



7 



61 



7-8 

 5-3 



4-5 

 35 

 2-5 



8 

 10 5 



85 



19 



Of the 13 perforated humeri 7 were from the right side and 6 from the left. 

 Grand total of superficial humeri 32, perforations 20, or 62- 5 per cent. 



Length and Torsion of Humeri. Measurements are given in mm. 



Sex. 



Side. 



Right 

 Left 



Length. 



Torsion. 





Male 

 Uncertain 



302 

 304 



126° 



127° 



Not Perforated 

 Perforated 



Femora (Superficial). 

 Index. 



Male 



Female 



Uncertain 



Total. 



18 

 9 

 4 



Average Index. 



119 

 113 

 116 



Minimum 

 Index. 



102 

 102 

 113 



Maximum 

 Index. 



Oscillation Exponent. 



138-4 



125- 



119- 



7-4 



6-9 

 2- 



