Published in Annals of the Carnegie Museum, in 1928, in volume 18, pages 19-239

Published in Annals of The Carnegie Museum, in 1928, in volume 18, pages 241-246

Published in Annals of the Carnegie Museum, in 1928, in volume 18, pages 253-298

Published in Annals of The Carnegie Museum, in 1928, in volume 18, pages 305-328

Published in Annals of The Carnegie Museum, in 1928, in volume 19, pages 15-34

Published in Annals of The Carnegie Museum, in 1928, in volume 19, pages 35-45

Published in Annals of the Carnegie Museum, in 1928, in volume 19, pages 47-99