Published in Proceedings of the California Academy of Sciences, in 1933, in volume 21, pages 1-2
Published in Proceedings of the California Academy of Sciences, in 1933, in volume 21, pages 3-9
Published in Proceedings of the California Academy of Sciences, in 1933, in volume 21, pages 13-23
Published in Proceedings of the California Academy of Sciences. San Francisco. (Ser. 4), in 1933, in volume 21, pages 25-40
Published in Proceedings of the California Academy of Sciences, in 1933, in volume 21, pages 41-54
Published in Proceedings of the California Academy of Sciences, in 1933, in volume 21, pages 57-64
Published in Proceedings of the California Academy of Sciences, in 1933, in volume 21, pages 65-74
Published in Proceedings of the California Academy of Sciences, in 1933, in volume 21, pages 75-86
Published in Proceedings of the California Academy of Sciences, in 1933, in volume 21, pages 87-116
Published in Proceedings of the California Academy of Sciences, in 1933, in volume 21, pages 117-130
Published in Proceedings of the California Academy of Sciences, in 1933, in volume 21, pages 131-138
Published in Proceedings of the California Academy of Sciences, in 1933, in volume 21, pages 139-146