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JOURNAL, R.A.S. (CEYLON). [Yol. IX. 



resembling this in the Sinhalese skull No. 1, in which the 

 disturbances even extend to the skeleton of the face, and it 

 had better therefore be omitted in the comparison. 



The irregular formation of the processus pterygoides in the 

 second case, where is found, on the right side, a hyperplasia 

 of the lamina externa and a large foramen civinini, renders 

 this one also unsatisfactory for an entire comparison. Some- 

 what more considerable are the temporal deviations in the 

 third case, where at the right is found separating epipteri- 

 cum, and at the left a shortening of the angulus parietalis ; 

 but we found something similar with the Sinhalese, for in 

 No. 1 we encountered on either side a frontal continuance 

 of the squama temporalia, and in No. 2 a right-sided epip- 

 tericum. It would indeed be very desirable to have skulls 

 without these individual peculiarities (although possibly 

 somewhat common to the race), but at present they are not 

 to be obtained. 



Turning now to the comparison, we find that the average 

 capacity of the skull is very moderate. The skull out of the 

 Davis collection is the largest ; its capacity 1,375 cub. cm. 

 Mine have 1,155, 1,160, and 1,200 cub. cm. The average 

 amounts to 1,247 cub. cm., hence somewhat less than the 

 average of the Veddas (1,261 cub. cm.), and very much less 

 than that of the Sinhalese (1,406 cub. cm.). Considering the 

 small number of Tamil skulls, I should not be willing to take 

 this proportion as the standard, but it shows that the low 

 figures of the Yedda skulls must not be looked upon as wholly 

 exceptional. The skull of a hybrid in the Davis collection has 

 a somewhat higher measure, viz. (according to Mr. Welcker's 

 tables), 1,325 cub. cm. My doubtful Sinhalese skull, No. 3, 

 although belonging to a child, is also comparatively roomy, its 

 capacity being 1,250 cub. cm. But these specimens cannot be 

 taken into consideration in computing the average. 



The horizontal circumference of the skull out of the Davis 

 collection amounts to 495 mm. ; mine measure 477, 490, 

 and 473 mm., giving an average of 483 mm., differing little 



