Published in Biol Bull, in 1920, in volume 38, pages 33-37
Published in Biol Bull, in 1920, in volume 38, pages 39-76
Published in Biol Bull, in 1920, in volume 38, pages 77-82
Published in Biol Bull, in 1920, in volume 38, pages 83-103
Published in Biol Bull, in 1920, in volume 38, pages 103-122
Published in Biol Bull, in 1920, in volume 38, pages 123-140
Published in Biological Bulletin. Marine Biological Laboratory (Woods Hole), in 1920, in volume 38, pages 141-169
Published in Biol Bull, in 1920, in volume 38, pages 171-195
Published in Biol Bull, in 1920, in volume 38, pages 294-316
Published in Biol Bull, in 1920, in volume 38, pages 317-339
Published in Biol Bull, in 1920, in volume 38, pages 353-403
Published in Biol Bull, in 1920, in volume 38, pages 404-474
Published in Biol Bull, in 1920, in volume 39, pages 67-87
Published in Biol Bull, in 1920, in volume 39, pages 147-187
Published in Biol Bull, in 1920, in volume 39, pages 316-362