“One singularity in the dialects spoken by the Aborigines in different portions of Australia is, that those of districts widely removed from one another, sometimes assimilate very closely, whilst the dialects spoken in the intermediate ones differ considerably from either of them.  The same circumstances take place with regard to their rights and customs.”

And again, after comparing some of the dialects of South Australia and New South Wales with those of Western Australia, Captain Grey says (vol. ii. p. 216),

“Having thus traced the entire coast line of the continent of Australia, it appears that a language the same in root is spoken throughout this vast extent of country, and from the general agreement in this, as well as in personal appearance, rites and ceremonies, we may fairly infer a community of origin for the Aborigines.”

Had we a collected and an authentic account of the dialects, weapons, habits, customs, and traditions of all the tribes of Australia with whom Europeans have already been in close or friendly contact, and which, with very few exceptions, would embrace the circuit of the whole continent, we should have a mass of valuable and interesting information, that would enable us, not only to form a probable opinion as to the community of origin of the various tribes, and the point from which they first overspread the continent, but also to guide us in conjecturing the routes which the various offsets have taken from the parent tribe, the places of contact where they have met from opposite extremities of the continent, and the gradual change which has taken place in the habits, customs, and dialects of each.

In the absence of many links necessary to form a connection, we can at present only surmise conclusions, which otherwise might have been almost certainly deduced.

Connecting, however, and comparing all the facts with which we are acquainted, respecting the Aborigines, it appears that there are still grounds sufficient to hazard the opinion, that it is not improbable that Australia was first peopled on its north-western coast, between the parallels of 12 degrees and 16 degrees S. latitude.  From whence we might surmise that three grand divisions had branched out from the parent tribe, and that from the offsets of these the whole continent had been overspread.

The first division appears to have proceeded round the north-western, western, and south-western coast, as far as the commencement of the Great Australian Bight.  The second, or central one, appears to have crossed the continent inland, to the southern coast, striking it about the parallel of 134 degrees E. longitude.  The third division seems to have followed along the bottom of the Gulf of Carpentaria to its most south-easterly bight, and then to have turned off by the first practicable line in a direction towards Fort Bourke, upon the Darling.  From these three divisions various offsets and ramifications