Published in Proceedings of the California Academy of Sciences, in 1918, in volume 2, pages 1-187

Published in Proceedings of the California Academy of Sciences, in 1918, in volume 7, pages 319-330

Published in Proceedings of the California Academy of Sciences, in 1918, in volume 8, pages 35-112

Published in Proceedings of the California Academy of Sciences, in 1918, in volume 8, pages 113-156

Published in Proceedings of the California Academy of Sciences, in 1918, in volume 8, pages 157-179

Published in Proceedings of the California Academy of Sciences, in 1918, in volume 8, pages 181-270

Published in Proceedings of the California Academy of Sciences, in 1918, in volume 8, pages 271-308