Published in Journal of the Royal Society of Western Australia, in 1975, in volume 58, pages 1-14

Published in Journal of the Royal Society of Western Australia, in 1975, in volume 58, pages 15-32

Published in Journal of the Royal Society of Western Australia, in 1975, in volume 58, pages 33-53

Published in Journal of the Royal Society of Western Australia, in 1975, in volume 58, pages 54-58

Published in Journal of the Royal Society of Western Australia, in 1975, in volume 58, pages 59-63

Published in Journal of the Royal Society of Western Australia, in 1975, in volume 58, pages 65-74

Published in Journal of the Royal Society of Western Australia, in 1975, in volume 58, pages 75-85

Published in Journal of the Royal Society of Western Australia, in 1975, in volume 58, pages 86-92

Published in Journal of the Royal Society of Western Australia, in 1975, in volume 58, pages 93-96

Published in Journal of the Royal Society of Western Australia, in 1975, in volume 58, pages 97-126