24 
Proceedings of the Royal Society of Edinburgh. [Sess. 
Australian. 
For all tables see Dr Robertson’s independent work on the Australian 
crania. 
Papuan. 
Table of measurements : Table VII. 
Crania not separated into sexes : Table VIII. 
Details as under Tasmanian. 
Comparative Tables of Tasmanians, Australians, and Papuans. 
Tables IX., X., XI., and XII. 
Concerning the relative lengths of the crania in the three racial groups 
examined, it will be noticed from Tables IX. and X. that the Australian has 
absolutely the longest skull, and the Papuan the shortest. 
For breadth, the Tasmanian occupies the highest position, and the 
Papuan the lowest. 
Regarding height, to which, in view of Schwalbe’s work (24), very 
considerable evolutionary importance is to be attached, the Papuan comes 
first and the Australian last. 
Translated into the language of the craniologist, these results show 
for the breadth-length ratio, that is, the cephalic index, the Australian 
is the most dolichocephalic with an index of 71 *75, the Papuan comes 
next with an index of 72*54, and the Tasmanian is within a decimal 
point of being mesaticephalic with an index of 74*94. 
Whilst all three groups are, therefore, dolichocephalic, the Australian 
is most so, almost within the confines of hyperdolichocephaly — in fact, 
for Krause (25) he actually is so, with an index for the male of 69*7, 
whilst Broca’s figures (26) approximate to our own, namely, 71*49 for 
27 crania. 
As regards the height index, the skulls of all three races are metrio- 
cephalic or orthocephalic. The Papuan with an index of 74*41 approaches 
most nearly to the hypsicephalic, akrocephalic, or high type of skull ; 
the Tasmanian ranks second with an index of 72*19 ; whilst the Australian 
most nearly approaches the chamaecephalic, tapeinocephalic, or low type 
of skull with an index of 71*38. 
The breadth-height index shows that the Papuan alone has a hypsisteno- 
cephalic or high, narrow skull, with an index of 102*56. The remaining 
two possess a platychamaecephalic or wide, low skull, with indices respec- 
tively of 99*65 for the Australian and 96*33 for the Tasmanian. 
