The present investigation arose in part as an examination into, and an extension of, an attempt by Professor R. J. A. Berry and Dr A. W. D. Robertson at placing the Tasmanian aboriginal in his relation to various other racial types, extinct and existent. It has resolved itself into a numerical calculation of the approximate relative positions of these types in the evolutionary scale, together with a determination of the relative values of various cranial measurements and indices employed by Schwalbe in his “form analysis” of the calvarium, as criteria is assigning these positions.