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