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