Published in Journal of The Royal Society of Western Australia, in 1950, in volume 34, pages 1-16

Published in Journal of The Royal Society of Western Australia, in 1950, in volume 34, pages 17-33

Published in Journal of The Royal Society of Western Australia, in 1950, in volume 34, pages 35-72

Published in Journal of The Royal Society of Western Australia, in 1950, in volume 34, pages 73-86

Published in Journal of The Royal Society of Western Australia, in 1950, in volume 34, pages 87-104

Published in Journal of The Royal Society of Western Australia, in 1950, in volume 34, pages 105-114

Published in Journal of the Royal Society of Western Australia, in 1950, in volume 34, pages 115-134

Published in Journal of The Royal Society of Western Australia, in 1950, in volume 35, pages 31-84