Published in Proceedings of the Royal Society of Queensland, in 1939, in volume 50, pages 33-39

Published in Proceedings of The Royal Society of Queensland, in 1939, in volume 50, pages 133-152

Published in Proceedings of The Royal Society of Queensland, in 1939, in volume 51, pages 51-131

Published in Proceedings of The Royal Society of Queensland, in 1939, in volume 51, pages 133-146