Blacks were early scientists in some of their ideas, being before Darwin with the evolution theory, only theirs was a kind of evolution aided by Byamee. I dare say, though, the missing link is somewhere in the legends. I rather think the Central Australians have the key to it. One old man here was quite an Ibsen with his ghastly version of heredity.
He said, when I asked him what harm it would do for, say, a Beewee totem man to come from the Gulf country, where his tribe had never had any communication with ours, and marry a girl here,—that all Beewees were originally changed from the Beewee form into human shape. The Beewee of the Gulf, originally, like the Beewee here, had the same animal shape, and should two of this same blood mate the offspring would throw back, as they say of horses, to the original strain, and partake of iguana (Beewee) attributes either in nature or form.
From the statements just given, it will be seen that the Euahlayi are in the Kamilaroi stage of social organisation. They reckon descent in the female line: they have 'phratries' and four matrimonial classes, with totems within the phratries. In their system of 'multiplex-totems' or 'sub-totems' they resemble the Wotjobaluk tribe. [Howitt, NATIVE TRIBES OF SOUTH-EAST AUSTRALIA, pp. 121, 125, 453, 455.] The essence of the 'sub-totem' system is the division of all things into the categories provided by the social system of the human society. The arrangement is a very early attempt at a scientific system of classification.
Perhaps the most peculiar feature in the organisation of the Euahlayi is the existence of Matrimonial Classes, which are named as in the Kamilaroi tongue, while the phratry names are not those of the Kamilaroi, and alone among phratry names in Australia which can be translated, are not names of animals. The phratries have thus no presiding animals, and in the phratries there are no totem kins of the phratriac names. The cause of these peculiarities is matter of conjecture.
A peculiarity in the totemic system of the Euahlayi—the right of each individual to kill and eat his own totem—has been mentioned, and may be associated here with other taboos on food.
The wunnarl, or food taboo, was taken off a different kind of food for boys at each Boorah, until at last they could eat what they pleased except their yunbeai, or individual familiar: their Dhe, or family totem, was never wunnarl or taboo to them.
A child may not perhaps know that it has had a yunbeai given to it, and may eat of it in ignorance, when immediately they say that child sickens.
Should a boy or a girl eat plains turkey or bustard eggs while they were yet wunnarl, or taboo, he or she would lose his or her sight. Should they eat the eggs or flesh of kangaroo or piggiebillah, their skins would break out in sores and their limbs wither.
Even honey is wunnarl at times to all but the very old or very young. Fish is wunnarl for about four years after his Boorah to a boy, and about four months after she is wirreebeeun, or young woman, to a girl.
When the wunnarl was taken off a particular kind of meat, a wizard poured some of the melted fat and inside blood of that animal or bird, as the case might be, over the boy, and rubbed it into him. The boy, shaking and shivering, made a spluttering noise with his lips; after that he could eat of the hitherto forbidden food.