448. 



JOURNAL, R.A.S. (CEYLON). 



[Vol. IX. 



Mr. Davis's, 137 mm. ; in mine it is 126, 134, and 128 ; in that 

 of the hybrid 130 ; in the child's skull 132 mm. ; hence in none 

 of them anything considerable. In comparison with these 

 the measures of the vertical height are 137*5, — remarkable : in 

 the same order they are 132—139, 132, 137-5,— 132,— and 133. 

 The greatest number here, therefore, is that of the plagio- 

 cephalic skull, No. 1, which must be left out of consideration. 

 All the remaining figures are very moderate, even small as 

 contrasted with the Sinhalese, in fact almost on the borders of 

 the Vedda figures. The breadth is greater than the height in 

 two out of the three typical Tamils. 



The matter takes another aspect if we consider the figures 

 of comparison. The length to height index amounts with 

 Mr. Davis to 76, with my three skulls to 79'4, 73*7, and 80*9, 

 with the hybrid 78, with the child's skull to 77*3. From this 

 the average of the three typical Tamils is 76'8, which corres- 

 ponds with the hybrids. This is a decidedly hypsicephalic 

 measure, larger than that of the Veddas (74*9) or of the 

 Sinhalese (74*2). This, then, may be included among the 

 diagnostic points. 



The auricular index is also correspondingly high. I found 

 it 66-3, 63-1, and 68-8, and with the child 67-4. 



Whilst a comparison of the bony skull of the Vedda with 

 that of the Sinhalese proves great similarity, as compared 

 with the Tamil, on the contrary, a great difference is 

 observed. The skull of the latter is hypsimesocephalic, and 

 even when the measure of the contents shows very slight 

 variations, great differences appear in the circumference 

 measures. How much the latter were to be seen in the 

 sagittal circumference and in the share of the different parts 

 of the roof of the skull, has been previously explained in 

 detail. 



If we now turn to the shape of the face, we find that with 

 the Tamils it is quite regular. 



The orbital index amounts to 844, 83*3, and 86*4, hence in 

 the average 84*7, a high mesokonch measure, The child's 



