Published in Biol Bull, in 1908, in volume 15, pages 85-104

Published in Biol Bull, in 1908, in volume 15, pages 119-126

Published in Biol Bull, in 1908, in volume 15, pages 127-134

Published in Biol Bull, in 1908, in volume 15, pages 194-205

Published in Biol Bull, in 1908, in volume 15, pages 226-228