The word for the sun at Perth is nganga, whilst at Adelaide it is tin-dee; but the word used by the natives at Encounter Bay, South Australia, thirty-six miles from Adelaide, is ngon-ge, and the word used in the southern districts of Western Australia for the stars is tiendee: thus by extending the vocabularies of the two places the identity of the language is shown.
CAUSES OF ERROR IN FORMER ENQUIRERS.
Up to the present time we have had only very meagre vocabularies, collected by passing strangers, each of whom adopted his own system of orthography, and the comparisons formed from such compilations must necessarily have been erroneous in the highest degree.

Moreover in many instances these strangers were grossly imposed upon.

One gentleman published a vocabulary of the King George's Sound dialect which has been largely quoted from by other writers; in this the numerals as high as ten are given, although the natives only count to four; and the translations of some words which he has put down as numbers are very humorous, such as: What do you mean?
Get out, etc.
COMMON ORIGIN OF NATIVE POPULATION.
Many words spoken by the natives at Shark Bay are the same as those used by the natives at Perth, and the dialect in use in the Province of Victoria appears very nearly to assimilate to the latter, as is shown in the extracts from Mr.Moore's journal at page 120.

Having thus traced the entire of the coastline 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.

This being admitted, two other questions will arise.
How were they disseminated over the continent?
and At what period, and from what quarter, did they arrive upon it?
.