Published in Bulletin of The Southern California Academy of Sciences, in 1936, in volume 34, pages 194-210

Published in Bulletin of The Southern California Academy of Sciences, in 1936, in volume 35, pages 9-29

Published in Bulletin of The Southern California Academy of Sciences, in 1936, in volume 35, pages 30-38

Published in Bulletin of The Southern California Academy of Sciences, in 1936, in volume 35, pages 82-83

Published in Bulletin of The Southern California Academy of Sciences, in 1936, in volume 35, pages 149-153