Published in Proc. Acad. Nat. Sci. Philad. (ser. 3), in 1885, in volume 37, pages 138-148

Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1885, in volume 37, pages 412

Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1885, in volume 37, pages 394-403

Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1885, in volume 37, pages 117

Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1885, in volume 37, pages 383-384

Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1885, in volume 37, pages 378

Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1885, in volume 37, pages 366

Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1885, in volume 37, pages 435

Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1885, in volume 37, pages 52-62

Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1885, in volume 37, pages 180

Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1885, in volume 37, pages 441-471

Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1885, in volume 37, pages 97-101

Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1885, in volume 37, pages 102-104

Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1885, in volume 37, pages 124-135

Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1885, in volume 37, pages 224

Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1885, in volume 37, pages 431-434

Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1885, in volume 37, pages 365

Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1885, in volume 37, pages 429-430

Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1885, in volume 37, pages 14-18

Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1885, in volume 37, pages 19

Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1885, in volume 37, pages 419-421

Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1885, in volume 37, pages 406

Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1885, in volume 37, pages 413-414

Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1885, in volume 37, pages 415-417

Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1885, in volume 37, pages 381-382

Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1885, in volume 37, pages 380