Published in Bulletin of The Southern California Academy of Sciences, in 1937, in volume 36, pages 6-7

Published in Bulletin of The Southern California Academy of Sciences, in 1937, in volume 36, pages 35-37

Published in Bulletin of The Southern California Academy of Sciences, in 1937, in volume 36, pages 61-64

Published in Bulletin of The Southern California Academy of Sciences, in 1937, in volume 36, pages 79-82

Published in Bulletin of The Southern California Academy of Sciences, in 1937, in volume 36, pages 111-124

Published in Bulletin of the Southern California Academy of Sciences, in 1937, in volume 36, issue 3, pages 107-110