Published in Proceedings of the California Academy of Sciences, in 1938, in volume 22, pages 179-185
Published in Proceedings of The California Academy of Sciences, in 1938, in volume 23, pages 203-216
Published in Proceedings of The California Academy of Science (4Th Series), in 1938, in volume 23, pages 217-244
Published in Proceedings of the California Academy of Sciences, in 1938, in volume 23, pages 255-261
Published in Proceedings of the California Academy of Sciences, in 1938, in volume 23, pages 289-301
Published in Proceedings of the California Academy of Sciences, in 1938, in volume 23, pages 303-306
Published in Proceedings of the California Academy of Sciences, in 1938, in volume 23, pages 307-310
Published in Proceedings of the California Academy of Science (4th Series), in 1938, in volume 23, issue 16, pages 245-254
Published in Proceedings of The California Academy of Science (4Th Series), in 1938, in volume 23, issue 18, pages 263-282