Published in Journal of The Royal Society of Western Australia, in 1930, in volume 16, pages 1-24

Published in Journal of The Royal Society of Western Australia, in 1930, in volume 16, pages 25-40

Published in Journal of The Royal Society of Western Australia, in 1930, in volume 16, pages 41-44

Published in Journal of The Royal Society of Western Australia, in 1930, in volume 16, pages 45-56

Published in Journal of The Royal Society of Western Australia, in 1930, in volume 16, pages 57-70

Published in Journal of The Royal Society of Western Australia, in 1930, in volume 16, pages 71-74

Published in Journal of The Royal Society of Western Australia, in 1930, in volume 16, pages 75-85

Published in Journal of the Royal Society of Western Australia, in 1930, in volume 25, pages 197-205