Published in Proceedings of the California Academy of Sciences, in 1927, in volume 15, pages 501-510

Published in Proceedings of the California Academy of Sciences, in 1927, in volume 15, pages 511-546

Published in Proceedings of the California Academy of Sciences, in 1927, in volume 16, pages 1-51

Published in Proceedings of the California Academy of Sciences, in 1927, in volume 16, pages 53-85

Published in Proceedings of the California Academy of Sciences, in 1927, in volume 16, pages 87-95

Published in Proceedings of the California Academy of Sciences, in 1927, in volume 16, pages 97-122

Published in Proceedings of the California Academy of Sciences, in 1927, in volume 16, pages 123-135

Published in Proceedings of the California Academy of Sciences, in 1927, in volume 16, pages 137-157

Published in Proceedings of the California Academy of Sciences, in 1927, in volume 16, pages 159-203

Published in Proceedings of the California Academy of Sciences, in 1927, in volume 16, pages 205-229

Published in Proceedings of the California Academy of Sciences, in 1927, in volume 16, pages 261-359

Published in Proceedings of the California Academy of Sciences, in 1927, in volume 16, pages 361-363

Published in Proceedings of the California Academy of Sciences, in 1927, in volume 16, pages 365-380

Published in Proceedings of the California Academy of Sciences, in 1927, in volume 16, pages 381-395

Published in Proceedings of the California Academy of Sciences, in 1927, in volume 16, pages 397-499

Published in Proceedings of the California Academy of Sciences, in 1927, in volume 16, pages 501-507

Published in Proceedings of the California Academy of Sciences, in 1927, in volume 16, pages 509-515

Published in Proceedings of the California Academy of Sciences, in 1927, in volume 16, pages 517-571

Published in Proc. Calif. Acad. Sci. ser. 4, in 1927, in volume 16, pages 573-604

Published in Proceedings of the California Academy of Sciences, in 1927, in volume 16, pages 605-647

Published in Proceedings of the California Academy of Sciences, in 1927, in volume 16, pages 649-680