Published in Bulletin of The Southern California Academy of Sciences, in 1939, in volume 37, pages 101-104
Published in Bulletin of The Southern California Academy of Sciences, in 1939, in volume 37, pages 129-132
Published in Bulletin of The Southern California Academy of Sciences, in 1939, in volume 37, pages 133-136
Published in Bulletin of The Southern California Academy of Sciences, in 1939, in volume 37, pages 137-140
Published in Bulletin of The Southern California Academy of Sciences, in 1939, in volume 38, pages 14-16
Published in Bulletin of The Southern California Academy of Sciences, in 1939, in volume 38, pages 20-26
Published in Bulletin of The Southern California Academy of Sciences, in 1939, in volume 38, pages 43-53
Published in Bulletin of The Southern California Academy of Sciences, in 1939, in volume 38, pages 57-62
Published in Bulletin of The Southern California Academy of Sciences, in 1939, in volume 38, pages 98-111
Published in Bulletin of The Southern California Academy of Sciences, in 1939, in volume 38, pages 112-119
Published in Bulletin of The Southern California Academy of Sciences, in 1939, in volume 38, pages 124-127