Published in Bulletin of the British Museum (Natural History). Mineralogy., in 1950, in volume 1, issue 1, pages 3-11

Published in Bulletin of the British Museum (Natural History). Mineralogy., in 1950, in volume 1, issue 1, pages 16-22

Published in Bulletin of the British Museum (Natural History). Mineralogy., in 1950, in volume 1, issue 2, pages 27-72