Published in Bulletin of The Southern California Academy of Sciences, in 1934, in volume 33, pages 1-6

Published in Bulletin of The Southern California Academy of Sciences, in 1934, in volume 33, pages 57-58

Published in Bulletin of The Southern California Academy of Sciences, in 1934, in volume 33, pages 59-73

Published in Bulletin of The Southern California Academy of Sciences, in 1934, in volume 33, pages 74-78