Published in Bulletin of the Southern California Academy of Sciences, in 1947, in volume 45, issue 2, pages 119-131

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

Published in Bulletin of The Southern California Academy of Sciences, in 1947, in volume 46, issue 1, pages 35-60

Created: 2012-01-17, modified: 2012-03-30