Published in Proceedings of the California Academy of Sciences, in 1926, in volume 14, pages 427-503

Published in Proceedings of the California Academy of Sciences, in 1926, in volume 14, pages 505-520

Published in Proceedings of the California Academy of Sciences, in 1926, in volume 14, pages 521-566

Published in Proceedings of the California Academy of Sciences, in 1926, in volume 15, pages 1-113

Published in Proceedings of the California Academy of Sciences, in 1926, in volume 15, pages 115-193

Published in Proceedings of the California Academy of Sciences, in 1926, in volume 15, pages 195-207

Published in Proceedings of the California Academy of Sciences, in 1926, in volume 15, pages 209-217

Published in Proceedings of the California Academy of Sciences, in 1926, in volume 15, pages 219-222

Published in Proceedings of the California Academy of Sciences, in 1926, in volume 15, pages 241-255

Published in Proceedings of the California Academy of Sciences, in 1926, in volume 15, pages 257-261

Published in Proceedings of the California Academy of Sciences, in 1926, in volume 15, pages 263-268

Published in Proceedings of the California Academy of Sciences, in 1926, in volume 15, pages 269-278

Published in Proceedings of the California Academy of Sciences, in 1926, in volume 15, pages 279-322

Published in Proceedings of the California Academy of Sciences, in 1926, in volume 15, pages 323-397

Published in Proceedings of the California Academy of Sciences, in 1926, in volume 15, pages 399-408

Published in Proceedings of the California Academy of Sciences, in 1926, in volume 15, pages 409-464

Published in Proceedings of the California Academy of Sciences, in 1926, in volume 15, pages 467-491

Published in Proceedings of the California Academy of Sciences, in 1926, in volume 15, pages 493-500