1913-14.] Curvatures of the Tasmanian Aboriginal Cranium. 131 
The objects of the present research are : — 
1. To record certain craniometrical curvilinear and angular measure- 
ments, the latter being based on the nasio-inion plane. 
2. To estimate the degree of flattening, or otherwise, of the Tasmanian 
aboriginal crania. 
3. To estimate the evolutionary position of the Tasmanian from a 
study of certain of his cranial curvatures. 
It has already been pointed out that, as one of the main objects of 
the Tasmanian work of Berry and Robertson was a comparison of the 
Tasmanian evolutionary relationship with that of Pithecanthropus erectus , 
they were compelled to employ the glabella-inion plane as their base. As 
the present work is freed from this disability, one of its first objects is to 
restate certain already recorded Tasmanian measurements on the new 
base — the nasio-inion plane — a base which it has already been shown 
Berry and Robertson prefer, where possible. As it is not proposed to do 
more than record these figures, they are simply set forth in Table I , and 
will not herein be again referred to. Suffice it to state that there are now 
available on both base-lines a large number of Tasmanian measurements for 
future comparison of other races by subsequent observers, and that, in each 
instance, the number of Tasmanians so recorded is the largest on record. 
The material on which the present work is based will be found in Berry 
and Robertson’s “ Dioptrographic Tracings in Four Normse of Fifty-two 
Tasmanian Crania ” (23). In Table I. the angular and certain curvilinear 
measurements are estimated from the median sagittal drawings, that is, 
a tracing in the norma lateralis. The remainder of the observations in 
Table I. were recorded by Professor Berry and Dr Robertson on the 
original crania, w r hilst they were engaged in their investigations in 
Tasmania in 1909, and they are now made available for scientific study 
for the first time. I have to express my thanks to these authors for 
permission to utilise their figures. 
These observations, to the number of nineteen, are set forth in 
Table I., and are as follow : — 
1. The nasion-inion length. 
2. The bregma -nasion-inion angle. This angle corresponds with 
Schwalbe’s bregma angle, which has already been recorded by Berry 
and Robertson on the Tasmanian crania which form the subject of the 
present research. 
3. The frontal angle. 
4. The nasion-inion -lambda angle. The lambda angle has already been 
recorded by Berry and Robertson, based on the glabella-inion plane. 
