Published in Proceedings of the California Academy of Sciences, in 1916, in volume 5, pages 195-201
Published in Proceedings of the California Academy of Sciences, in 1916, in volume 6, pages 1-17
Published in Proceedings of the California Academy of Sciences, in 1916, in volume 6, pages 19-40
Published in Proceedings of the California Academy of Sciences, in 1916, in volume 6, pages 41-52
Published in Proceedings of the California Academy of Sciences, in 1916, in volume 6, pages 53-85
Published in Proceedings of the California Academy of Sciences, in 1916, in volume 6, pages 87-128
Published in Proceedings of the California Academy of Sciences, in 1916, in volume 6, pages 129-213
Published in Proceedings of the California Academy of Sciences, in 1916, in volume 6, issue 7, pages 215-221