Published in Proceedings of The Royal Society of New South Wales, in 1952, in volume 1951-52, pages 23-30

Created: 2012-06-07, modified: 2012-06-07

Published in Proceedings of the Royal Society of New South Wales, in 1952, in volume 1951-52, pages 40-42

Created: 2016-05-04, modified: 2016-05-04

Published in Proceedings of the Royal Society of New South Wales, in 1952, in volume 1951-52, pages 43-45

Created: 2016-05-04, modified: 2016-05-04