Proceedings of the Biological Society of Washington.

v. 17 (1904)

Proceedings of the Biological Society of Washington.

v. 22 (1909)

Proceedings of the Biological Society of Washington.

v. 33 (1920)

Proceedings of the Biological Society of Washington.

v. 31 (1918)

Proceedings of the Biological Society of Washington.

v. 34 (1921)

Proceedings of the Biological Society of Washington.

v. 35 (1922)

Proceedings of the Biological Society of Washington.

v. 21 (1908)

Proceedings of the Biological Society of Washington.

v. 27 (1914)

Proceedings of the Biological Society of Washington.

v. 23 (1910)

Proceedings of the Biological Society of Washington.

v. 30 (1917)

Proceedings of the Biological Society of Washington.

v. 32 (1919)

Proceedings of the Biological Society of Washington.

v. 29 (1916)

Proceedings of the Biological Society of Washington.

v. 18 (1905)

Proceedings of the Biological Society of Washington.

v. 25 (1912)

Proceedings of the Biological Society of Washington.

v. 26 (1913)