Published in Bulletin of The Southern California Academy of Sciences, in 1942, in volume 40, pages 138-139

Published in Bulletin of The Southern California Academy of Sciences, in 1942, in volume 40, pages 140-146

Published in Bulletin Southern California Academy of Sciences, in 1942, in volume 41, pages 1-13

Published in Bulletin of The Southern California Academy of Sciences, in 1942, in volume 41, pages 39-41

Published in Bulletin of The Southern California Academy of Sciences, in 1942, in volume 41, pages 49-50

Published in Bulletin of The Southern California Academy of Sciences, in 1942, in volume 41, pages 69-71

Published in Bulletin of The Southern California Academy of Sciences, in 1942, in volume 41, pages 72-79