Published in Proceedings of the California Academy of Sciences, in 1917, in volume 2, pages 375-382

Published in Proceedings of the California Academy of Sciences, in 1917, in volume 7, pages 33-35

Published in Proceedings of the California Academy of Sciences, in 1917, in volume 7, pages 41-124

Published in Proceedings of the California Academy of Sciences, in 1917, in volume 7, pages 125-156

Published in Proceedings of the California Academy of Sciences, in 1917, in volume 7, pages 157-182

Published in Proceedings of the California Academy of Sciences, in 1917, in volume 7, pages 193-196

Published in Proceedings of the California Academy of Sciences, in 1917, in volume 7, pages 197-205

Published in Proceedings of the California Academy of Sciences, in 1917, in volume 7, pages 207-227

Published in Proceedings of the California Academy of Sciences, in 1917, in volume 7, pages 229-248

Published in Proceedings of the California Academy of Sciences, in 1917, in volume 6, pages 223-228

Published in Proceedings of The California Academy of Sciences, in 1917, in volume 7, pages 249-318