Published in Annals And Magazine of Natural History, in 1923, in volume 11, pages 586-600
Published in Annals And Magazine of Natural History, in 1923, in volume 11, pages 459-463
Published in Annals And Magazine of Natural History, in 1923, in volume 11, pages 256-263
Published in Annals And Magazine of Natural History, in 1923, in volume 11, issue 63, pages 322-326