Published in Biol Bull, in 1910, in volume 19, pages 138-160

Published in Biol Bull, in 1910, in volume 19, pages 204-216

Published in Biol Bull, in 1910, in volume 19, pages 219-234

Published in Biol Bull, in 1910, in volume 19, pages 303-323

Published in Biol Bull, in 1910, in volume 20, pages 1-13

Published in Biol Bull, in 1910, in volume 20, pages 14-18

Published in Biol Bull, in 1910, in volume 20, pages 35-69