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 6, pages 223-228
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 7, pages 249-318