Thirdly, from the list I have given, it seems that to each woman there would be about 1 1/3 child. Upon this subject Mr. Moorhouse remarks, that his investigation has led to the conclusion that each woman has, on an average, five children born (nine being the greatest number known), but that each mother only rears, upon an average, two; and this I think, upon the whole, would be a tolerably correct estimate. There is one point connected with the return I have given, peculiarly striking, as it shews the comparatively small increase that now appears to be going on among the more numerous tribes of the Aborigines, I allude to the fact of there only having been fifty-two young infants among 1330 women. By infants I mean such as had to be carried in the arms, for those who could walk at all have been classed among the boys and girls. I have never known a case of twins among the Aborigines, and Mr. Moorhouse informs me that no case has ever come under his observation; but Captain Grey found such to occur sometimes in Western Australia. On the number and proportion of the sexes he observes, that 4.6 seemed to be the average number of children born to each woman, and that there was one female to every 1.3 males. With respect to the duration of life among the Aborigines, Captain Grey says, vol. ii. p. 246-248--"With regard to the age occasionally attained by the natives, I believe very erroneous ideas have been prevalent, for so far am I from considering them to be short lived, that I am certain they frequently attain the age of seventy years and upwards." "Yet were these instances of longevity contrasted with the great number of deaths which take place during the period of infancy, there can be no doubt whatever that the average duration of life amongst these savage tribes falls far short of that enjoyed by civilized races." These remarks, as far as my observation has extended, apply to the natives of New Holland generally. I have frequently met with many venerable, white-headed men among the Aborigines, who could not, I think, have been less than eighty years of age, and who yet retained the full vigour of mind, and the bold, upright, though now wasted form, that had characterised them in the pride of manhood; but about sixty-five appears perhaps to be the average age attained by the old. The second inference is more than borne out by the statement already recorded, that for every five children born on an average to each mother, two only are reared, and these subject to all the casualities and dangers which savage life is exposed to.