Published in Proceedings of the California Academy of Sciences, in 1931, in volume 19, pages 217-397

Created: 2011-06-28, modified: 2011-10-03

Published in Proceedings of the California Academy of Sciences, in 1931, in volume 19, pages 399-410

Created: 2011-06-28, modified: 2011-06-28

Published in Proceedings of the California Academy of Sciences, in 1931, in volume 19, pages 411-482

Created: 2011-06-28, modified: 2011-06-28

Published in Proceedings of the California Academy of Sciences, in 1931, in volume 20, pages 1-7

Created: 2011-06-28, modified: 2021-04-05

Published in Proceedings of the California Academy of Sciences, in 1931, in volume 20, pages 9-104

Created: 2011-06-28, modified: 2021-04-05

Published in Proceedings of the California Academy of Sciences, in 1931, in volume 20, pages 105-128

Created: 2011-06-28, modified: 2021-04-05

Published in Proceedings of the California Academy of Sciences, in 1931, in volume 20, pages 135-160

Created: 2011-06-28, modified: 2021-04-05