Description:  REGARDING the aborigines of Western Australia the materials at our disposal are somewhat scanty.There exists a theory that all savages are the degraded descendants of civilized ancestors, If this be true it seems to me that the Australian Blackboys' period of enlightenment must have existed very far back in the dim twilight of ancient history.Theories are, as is well known, apt to outrun facts, so I will not try my reader's patience by venturing to discuss the question of 'rise or fall,' but content myself with the observation that through unnumbered ages there have been wanderers in the desert, side by side with dwellers in cities; and our black Australian brother seems to have descended from the former class. I am likewise led to remark in passing, that our first parents before the fall did not live in a state of civilization, but of ignorance--an ignorance which was undoubtedly bliss,--for ever to be dispelled by the knowledge of good and evil.