Published in Proceedings of the California Academy of Sciences, in 1915, in volume 5, pages 1-10
Published in Proceedings of the California Academy of Sciences, in 1915, in volume 5, pages 11-31
Published in Proceedings of the California Academy of Sciences, in 1915, in volume 5, pages 33-98
Published in Proceedings of the California Academy of Sciences, in 1915, in volume 5, pages 99-110
Published in Proceedings of the California Academy of Sciences, in 1915, in volume 5, pages 111-161
Published in Proceedings of the California Academy of Sciences, in 1915, in volume 5, pages 163-193