Published in Proceedings of the California Academy of Sciences, in 1929, in volume 18, pages 261-265

Published in Proceedings of the California Academy of Sciences, in 1929, in volume 17, pages 297-307

Published in Proceedings of the California Academy of Sciences, in 1929, in volume 18, pages 1-27

Published in Proceedings of the California Academy of Sciences, in 1929, in volume 18, pages 45-71

Published in Proceedings of the California Academy of Sciences, in 1929, in volume 18, pages 219-220

Published in Proceedings of the California Academy of Sciences, in 1929, in volume 18, pages 221-227

Published in Proceedings of the California Academy of Sciences, in 1929, in volume 18, pages 229-243

Published in Proceedings of the California Academy of Sciences, in 1929, in volume 18, pages 245-260

Published in Proceedings of the California Academy of Sciences, in 1929, in volume 18, pages 385-391

Published in Proceedings of the California Academy of Sciences, in 1929, in volume 18, pages 497-530

Published in Proceedings of the California Academy of Sciences, in 1929, in volume 17, pages 308-360

Published in Proceedings of the California Academy of Sciences, in 1929, in volume 18, pages 29-43

Published in Proceedings of the California Academy of Sciences, in 1929, in volume 18, pages 73-213

Published in Proceedings of the California Academy of Sciences, in 1929, in volume 18, pages 217-218

Published in Proceedings of the California Academy of Sciences, in 1929, in volume 18, pages 267-383

Published in Proceedings of the California Academy of Sciences, in 1929, in volume 18, pages 393-484

Published in Proceedings of the California Academy of Sciences, in 1929, in volume 18, pages 485-496